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Yuba Consolidated Industries Records MSS.322
MSS.322  
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Box 1

Photographs, Dredger Operations

Physical Description: 9.0 folders
 

Folder 1: Various Photos (12 photographs) including J.F. Newsome, Encina Hall Stanford University 5/18/1906, Olin Tool and Dye Open House (1 photograph: Ted Cooper, CMR, Jim Lames, Jim Sweet, and E.Q. Parker) Various Manufacturing (possibly Maricopa, CA.) and Mr. W.B. Maculey compliments of G.H. Thurman, (unidentified men at Coffee Creek, 6/8/1922)

 

Folder 2: Various Yuba Dredger Operations (11 photographs) including Yuba Biggs #4 Chico, Yuba #17, Capital #1-Dredge #72 3/25/1960 (later built as Biggs#3), Dredges “Roosevelt” and “Stuyvesant”, Tisco 10 cu ft. buckets (orders 231212 & 228293 for Bucyrus Erie Company) and Bucyrus Dredge for Continental Gold Dredging Company in 1899 (later operated by Oroville Dredging Company Ltd.)

 

Folder 3: Various Dredger Operations, including Yuba #2, Yuba #5, Yuba #14, Marigold #5, Dredge #19, and Dredge No. 17. 1914-1940

Physical Description: (27 photographs)
 

Folder 4: Various Dredger Operations (12 photographs) including Yuba Dredge #112 in Montana, Porter Company 1936, Yuba Dredge #150 in Alaska, 1936, Yuba Dredge #136 in Oregon, 1936, and Perry Scheder Dredge.

 

Folder 5: Dredger Operations, (10 photographs) including Tuolumne Gold Dredging Company, Yuba No. 149, #114 Patmon, 1940-41, and Thurman Gold Dredging Company, Dredge #149, 1940

 

Folder 6: Various Dredger Operations, Photostat Prints (49 Prints)

 

Folder 7: Various Dredger Operations, Photostat Prints (78 Prints)

 

Folder 8: Dredge Construction and Operations in the field (57 photographs)

 

Folder 9: Dredge Construction and Operations in the field (50 photographs)

Box 2

Photographs, Dredging Parts and Machine Shop Operations

Physical Description: 12.0 folders
 

Folder 1: Benicia Plant, Yuba Manufacturing Company (loading products on ship) 1949-1956

Physical Description: (29 photographs)
 

Folder 2: Sierra Movall, St. Laurence Seaway (18 photographs)

 

Folder 3: Benicia Plant, Yuba Manufacturing Company, 1930-1938

Physical Description: (12 photographs)
 

Folder 4: Yuba Manufacturing Company Dredger Parts and Products in Machine Shop, including Dredge Hull for Portuguese American Tin Company (15 photographs)

 

Folder 5: Ingerson Dredger Parts Manufacturing (went to Philippine Islands) (6 photographs)

 

Folder 6: Star Drill (7 photographs)

 

Folder 7: Yuba Manufacturing Company Dredger Parts and Products in Machine Shop Operations and Machine Shop, Dredger Parts from Brochure “Yuba-Placer Mining Dredges” (26 photographs)

 

Folder 8: Promotional Photographs of Yuba Consolidated Industries Inc., Manufacturing Division, and papers “Proprietary products” and “What We Have Done” which explain the photos as an illustration of the wide scope of past jobs reflecting the versatility of the Benicia Division. (15 photographs and 2 papers)

 

Folder 9: Yuba Manufacturing Company, Dredge Bucket photos and orders (11 photographs) including Pacific Tin Consolidated Corporation, Russian Dredges, Nechi Dredge, Pato No. 2, Placer Management Ltd. Dredges 3 & 4, Dredge Kampong Toh (Kukar), and Ranka Tin Mines.

 

Folder 10: Yuba made Movalls in Utah and Wyoming (7 photographs)

 

Folder 11: Yuba Manufacturing Company, Dredger Parts and Products in Machine Shop (34 photographs) including Boston Machine Shop, Dredge #159, Dredge #130 for Yukon Pacific Mining Company, Dredge #131 for Placer Development Ltd., Dredge #94, and Upper Tumblers for Mining Equipment Corporation 1914, 1934, 1950

 

Folder 12: Western Engineering and Construction Company, Hull Construction, Indiana #3, Port Tables, Port Winches, Screens, 1908 (5 photographs)

Box 3

Photo Albums, Dredging Operations

Physical Description: 6.0 folders
 

Folder 1: Photo Album (31 pages, numbered 1202-1232 and 1236-1241) includes photos of an old wooden dredge, Hammonton City (1920), Eastbrook Dredge-Trinity, Empire Mines and New Idaho-Maryland Mine, Grass Valley, CA, Callahan Construction Company, Sutter Basin, Yuba #14 (4/11/1933), and Natomas #8 (4/12/1933).

 

Folder 2: Photo Album, (37 pages) Book #27, Yuba Dredger Pumps.

 

Folder 3: Photo Album, (21 pages) Dredges, Machine Shop, and Construction (dredges in operation, ships, buckets, parts, transport) including Fairbanks Alaska, Coffee Creek (1922), Eastbrook Dredge-Trinity, Center, California (1925), Thurman Dredge (June 1925), Yuba No. 13 (1911), Top Tumbler for Kirrly Creek Gold Dredging Company (June 1911), and Natomas #10 (1912-1915).

 

Folder 4: Photo Album, (22 pages) Dredges, Machine Shop, and Construction (dredges in operation, ships, buckets, parts, and transport)

 

Folder 5: Photo Album, (11 pages) Various Dredger Parts and Operations.

 

Folder 6: Photo Album, (11 pages) Various Dredger Operations.

Box 4

Photographs, Yuba Dredger Operations

Physical Description: 7.0 folders
 

Folder 1: Yuba #14, August 1913 (6 photographs)

 

Folder 2: Yuba #14, September 1913 (16 photographs)

 

Folder 3: Yuba #14, October 1913 (10 photographs)

 

Folder 4: Yuba #14, November 1913 (25 photographs)

 

Folder 5: Yuba #14, December 1913 (13 photographs)

 

Folder 6: Yuba #16, 1916 (39 photographs)

 

Folder 7: Yuba #16, 1917 (23 photographs)

Box 5

Photographs, Dredging Operations

Physical Description: 10.0 folders
 

Folder 1: Various Dredgers Operations (33 photographs)including Lancha Plana #3, Thurman Gold Dredging Company Dredge #149, Cripple Creek USSR #143, and Fairbanks #133.

 

Folder 2: Various Dredger Operations, 1938-1940 (19 photographs) including Biggs #4 Yuba 20 Construction, Yuba Consolidated Gold Fields, Supia Dredge, and Snelling Gold Dredge #2.

 

Folder 3: South Platte Dredging Company, South Platte Dredge operated in Fairplay, Colorado (7 photographs)

 

Folder 4: Natomas #8, 1912 (9 photographs)

 

Folder 5: The “Hover” Dredge, Dredge #173 (20 photographs)

 

Folder 6: The Franciscan, cargo ship, 1958 (4 photographs)

 

Folder 7: Rand Dredge, (11 photographs)

 

Folder 8: Panob Dredge, photos and correspondence (6 photographs, 3 papers)

 

Folder 9: Operations in Tampa, Florida, Tug “Susan Moran” (9 photographs)

 

Folder 10: Dredger Operations (11 photographs) including Indiana Dredge No. 1 or No. 8, and Kentucky Ranch Dredge, Oroville, California

Box 6

Photographs, Foreign Dredging and Mining Operations

Physical Description: 10.0 folders
 

Folder 1: Mining Operations, Jalore, Malaeca, and Malay 1920 (41 photographs)

 

Folder 2: Mining Operations, Selangor 1920 (61 photographs)

 

Folder 3: Operations Abroad Hidelberg Germany, Belgium, Dredge “Queen of Holland”, Amsterdam, Korea, “Port Sunlight” Dredge London, Greece, France, Fano Africa, Malay, New Zealand, Indonesia dredge Sumatra, Malalaya #76 Kampan Dredge, Vinta valley, Perak Pacific Tin Consolidated Corp. Dredge No. 6 (23 photographs)

 

Folder 4: Mining Operations, Malay (26 photographs)

 

Folder 5: Foreign Mining Operations, including photographs from other various Malaysia industries and productions, such as road building, tapioca, oil press, ferries, occurrence of tin, elephants and kerbau, jungle bridge, boats, prospecting, temples, houses, resthouse/schoolhouse. (78 photographs)

 

Folder 6: Foreign Mining Operations, including photographs from other various Malaysia industries and productions, such as oxcarts, autos, trees/environment, rice, sawmill, religious celebrations, local people, jungle, climate, contracts, schist, limestone, granite, and volcanic phenomena. (76 photographs)

 

Folder 7: Supia, Columbia Dredging Operations (68 photographs) including Yuba Dredge #117 1954, (Pato #3 & #5) Pato Consolidated Gold Dredge Ltd., Dredge No. 3 and Supia Gold Dredging Company, 9/16/46 (Boulders removed by Yuba Dredge #144 and Bucket Train)

 

Folder 8: Mining Operations, Malay (possibly mining tin) (includes photos of rock grading (34 photographs)

 

Folder 9: Dredger Operations, Philippine Islands 1913 (74 photographs) including Malaquit River, Ingersoll Dredge, Risdon Dredge on Malaquit River, Paracale Dredge, and Malquit Dredge.

 

Folder 10: Ponderosa Mine, Chile, 1909 (9 photographs)

Box 7

Photographs, Yuba Dredgers and Others (All corresponding negatives are in Box 8)

Physical Description: 11.0 folders
 

Folder 1: Yuba Dredger Operations, possibly #3 or #14 (36 photographs)

 

Folder 2: Yuba Dredger Operations, possibly #3 or #14 (13 photographs)

 

Folder 3: Yuba #14, 8/1913-12/1913 (30 photographs)

 

Folder 4: Yuba #4, 1914 (25 photographs)

 

Folder 5: Yuba #3, 1914 (46 photographs)

 

Folder 6: Yuba #15, 1916 (46 photographs)

 

Folder 7: Yuba #16, 1916 (31 photographs)

 

Folder 8: Yuba #16, 1917 (49 photographs)

 

Folder 9: Dredger Operations (17 photographs, A-Q)

 

Folder 10: Yuba Manufacturing Company, Truck and Loading, Hull Pontoon Natomas Company, 1948 (11 photographs)

 

Folder 11: Dredger Operations (possibly Alaska) 1912 (39 photographs)

Box 8

Nitrate Negatives, Various Dredger Operations (511 negatives-Corresponding photos in Box 7)

 

001-012: Various Dredger Operations (12 negatives)

 

013-080: Yuba Dredgers (possibly #3 or #14)

 

081-111: Yuba #14 (99 negatives, 109B-200B)

 

112-113: Yuba #4 (2 negatives, 303 A & B)

 

114-176: Yuba #3 (62 negatives, 301A-399A)

 

177-246: Yuba #15 (69 negatives, 286B-499B)

 

247-326: Yuba #16 1916-1917 (80 negatives, 601A-682B)

 

327-343: Dredger Operations (17 negatives, A-Q)

 

344-425: Dredging #26 (82 negatives)

 

426-428: Dredge (Possibly Santa Margarita) (3 negatives)

 

429-436: Star Drill (8 negatives)

 

437-446: Hull Pontoon (Natomas Company) (10 negatives, 1-A to 1-K, and 1-I is missing)

 

447-470: Dredge #149 c. 1940 (24 negatives)

 

471-472: Supia Dredge, Yuba (2 negatives)

 

473-512: Dredger Operations (40 negatives, 639B, 702A-735A)

Box 9

Nitrate Negatives, Various Dredger Operations (352 negatives)

 

1S-255S: Various Dredger operations (145S is missing, 254 negatives total)

 

256-264: Biggs No. 1, 1935-1936 (9 negatives)

 

265-341: Dredging #1 (77 negatives)

 

342-346: Natoma Dredge (5 negatives)

 

347: Patco #1 (1 negative)

 

348-353: Dredger Operations, c. 1941 (6 negatives)

Box 10

Nitrate Negatives, Various Dredger Operations (7 negatives)

 

Folder 1: Panoramic of various Dredging Operations (7 negatives)

oversize-box 11

Dredge No. 53 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 6 and 12 cu. ft., Dredge No. 53, 1935-1937

Physical Description: 31 sheets
oversize-box 12

Gold Dredge Job #44 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 4, 5 and 6 cu ft., Gold Dredge Job #44, 1935, 1937-1938

Physical Description: 18 sheets
oversize-box 13

Dredge No. 56 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 4 cu. ft. Dredge No. 56, 1936, 1938-1939

Physical Description: 22 sheets
oversize-box 14

Dredge No. 50 Blueprints

Physical Description: (1 item)
 

Item 1: H.G. Peake Engineering Company blueprints, 6 cu. ft., Dredge No. 50, 1936-1937

Physical Description: 79 sheets
oversize-box 15

Dredge No. 48, 50, and 54 Blueprints

Physical Description: (3 items)
 

Item 1: Walter W. Johnson Company blueprints, 4 cu. ft., Dredge No. 50, 1935-1936

Physical Description: 9 sheets
 

Item 2: Walter W. Johnson Company blueprints, 4 cu. ft., Dredge No. 48, 1935

Physical Description: 6 sheets
 

Item 3: Walter W. Johnson Company blueprints, 2 ½ cu. ft., Dredge No. 54, 1938

Physical Description: 7 sheets
oversize-box 16

Dredge No. 42 and 43 Blueprints

Physical Description: (2 items)
 

Item 1: Walter W. Johnson Company blueprints, 2 ½ cu. ft., Dredge No. 42, 1935, 1939

Physical Description: 8 sheets
 

Item 2: Walter W. Johnson Company blueprints, 4 cu. ft., Dredge No. 43, 1935, 1939

Physical Description: 5 sheets
oversize-box 17

Dredge No. 45 Blueprints

Physical Description: (2 items)
 

Item 1: Walter W. Johnson Company blueprints, 10 cu. ft.

 

Item 2: Walter W. Johnson Company blueprints, 11 cu. ft. Dredge No. 45, 1936

Physical Description: 26 sheets
oversize-box 18

Dredge No. 45 Blueprints

Physical Description: (1 item)
 

Item 1: H. G. Peake Engineering Company blueprints, Dredge No. 45, 1907, 1935-36, 1938, 1940, 1936, 1938-1940, 50 sheets Boston Machine Shop Co., for Comanche Gold Dredging Co.,

oversize-box 19

Dredge No. 47 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 11 and 12 cu. ft. Dredge No. 47, 1936-1938

oversize-box 20

Dredge No. 47 Blueprints

Physical Description: (1 item)
 

Item 1: H.G. Peake Engineering Company blueprints, 11 and 12 cu. ft. Dredge No. 47, 1936-1938

oversize-box 21

Dredge No. 41 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 4, 5, and 6 cu. ft. Dredge No. 41, 1934-1937, 1939

Physical Description: 32 sheets
oversize-box 22

Dredge No. 51 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, for Yreka Gold Dredging Company, 6 cu. ft. Dredge No. 51 1936, 1940

Physical Description: 17 sheets
oversize-box 23

Dredge No. 55 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 4, 4 ½, 6, and 12, cu. ft. Dredge No. 55, 1936-1939

Physical Description: 22 sheets
oversize-box 24

Proposed Forest Development Roads Plans

Physical Description: (1 item)
 

Item 1: Plans for Proposed Forest Development Roads, Plumas National Forest, Plumas County, CA. Project Numbers: 23N89, 23N184, 23N180077, 23N73Y, 23N92Y, and 23N73Y027, 1965

oversize-box 25

Proposed Forest Development Roads Plans

Physical Description: (1 item)
 

Item 1: Plans for Proposed Forest Development Roads, Plumas National Forest, Plumas County, CA. Project Numbers: 23N89, 23N184, 23N180077, 23N73Y, 23N92Y, and 23N73Y027 1965

oversize-box 26

Proposed Forest Development Roads Plans

Physical Description: (1 item)
 

Item 1: Plans for Proposed Forest Development Roads, Plumas National Forest, Plumas County, CA. Project Numbers: 23N89, 23N184, 23N180077, 23N73Y, 23N92Y, and 23N73Y027 1965

oversize-box 27

Dredge No. 2 Blueprints

Physical Description: (1 item)
 

Item 1: Placer Management Limited No. 5 blueprints, 12 ½ cu. ft. Dredge No. 2, 1939-1940

Physical Description: 55 sheets
oversize-box 28

Dredge No. 2 Blueprints

Physical Description: (1 item)
 

Item 1: Placer Management Limited No. 5 blueprints, 12 ½ cu. ft. Dredge No. 2, 1939-1940

Physical Description: 55 sheets
oversize-box 29

Tin Placer Dredge Blueprints

Physical Description: (2 items)
 

Item 1: Joshua Hendy Iron Works, 14 cu. ft. x 100 ft. Tin Placer Dredge blueprints, 1944

Physical Description: 4 sheets (1 sheet handwritten)
 

Item 2: Bucyrus Company blueprints, 2 ¾ cu. ft. Tin Dredge, Oiling Arrangement for Lower Tumbler, Shaft Digging Ladder, and 3 ½ cu. ft. Dredge for Union Construction Company, 1915

Physical Description: 3 sheets
oversize-box 30

Various Dredger Blueprints

Physical Description: (7 items)
 

Item 1: H.G. Peake Engineering Company blueprints for Gold Canyon Creek Dredge Company, 1912, 1933

Physical Description: 2 sheets
 

Item 2: 14 cu. ft. (Gold Dredge) Buckets, blueprint by B. R. Storsand, 1940

 

Item 3: Yuba Associated Engineers Ltd. blueprint, Drwg. No. 6008,

Physical Description: 1 sheet
 

Item 4: Detail Estimate Blueprint template (blank),

Physical Description: 2 sheets
 

Item 5: American Manganese Steel Company blueprint, 9 cu. ft. Amsco Rivetless, 1938, and 10 cu. ft. Dredge for Bucyrus-Erie Company (copy)

 

Item 6: Snelling Gold Dredging Company blueprint, (Ladder Rollers and Details, Dredge No. 44), 1936

Physical Description: 2 sheets
 

Item 7: Various Dredge Parts, Hand drawn, 3 sheets, includes Dredge Pump Volute Layout, drawn by Jean M. Allen Consulting Engineer, 1945

oversize-box 31

Various Dredger Blueprints

Physical Description: (4 items)
 

Item 1: Taylor-Wharton Iron Steel Company, 3 cu. ft. Manganese Steel for Norman Cleveland, and 8, 14, 15 and 18 cu. ft., 1936, 1941-1942

Physical Description: 7 sheets
 

Item 2: Union Iron Works Company, 6 cu. ft. Gold Dredge “D”, 1927-1928

Physical Description: 2 sheets
 

Item 3: Yuba Manufacturing Company, 9 cu. ft. Dredge #150, 1940

Physical Description: 1 sheet
 

Item 4: Taylor-Wharton Iron Steel Company blueprint, Top Tumbler (used on Karimata) copied from original blueprint made by Gem: Mijnb: Mij: Billiton #923.009-597 F.I. 1941

Physical Description: 1 sheets
oversize-box 32

Various Dredger Blueprints

Physical Description: (5 items)
 

Item 1: La Grange Gold Dredging Company blueprints, 7 cu. ft., Continuous Bucket Electric Placer Mining Dredge, 1907

Physical Description: 6 sheets
 

Item 2: Boventuimelaar blueprints, upper and lower tumbler, 1939

Physical Description: 2 sheets
 

Item 3: Bethlehem Shipbuilding Corporation, Ltd. blueprints, 1935 for CAL. ORO. Dredging, Company,

Physical Description: 2 sheets
 

Item 4: Emmer Met Schalmer blueprint, No. 895

 

Item 5: Oro-Belle Dredge Changes, Continuous Bucket Dredge, 3 ½ cu. ft., 5 cu. ft., 7 cu. ft., 8 cu. ft., and 13 cu. ft., includes blueprints for The Folsom Development Company, and the LaGrange Gold Dredging Company 1931, 1933, 1935, 1905-07

Physical Description: 10 sheets
oversize-box 33

Various Dredger Blueprints

Physical Description: (5 items)
 

Item 1: Columbia Steel Casting Company blueprints, Manganese Steel Screen Plates, 4 and 5 cu. ft., 1937-1939

Physical Description: 4 sheets
 

Item 2: Joshua Hendy Iron Works blueprints by Columbia Steel Casting Company, 3 cu. ft., 1935

Physical Description: 9 sheets
 

Item 3: Columbia Steel Casting Company, for Hammon Consolidated Gold, (Ladder Roller Bearing) 1936

 

Item 4: Joshua Hendy Iron Works blueprints, 3 cu. ft. Gold Dredge, 1935-1936

Physical Description: 13 sheets (includes 1 hand drawn sheet)
 

Item 5: Bucyrus-Erie Company, 3 cu. ft. Placer dredge, 1935

Physical Description: 1 sheet
oversize-box 34

Close Connection Dredge Blueprints

Physical Description: (1 item)
 

Item 1: H. G. Peake Engineering Company blueprints, Various Dredges, 2 ½, 2 ¾ 3, 3 ½, and 4, cu. ft. Close Connection Dredge, 1908-1914, 1917-1918

Physical Description: 28 sheets
oversize-box 35

Loomis Dredge No. 40 Blueprints

Physical Description: (1 item)
 

Item 1: Walter W. Johnson Company blueprints, 11 cu. ft. Loomis Dredge #40, for Gold Hill Dredging Company, 1936-1937

Physical Description: 12 sheets
oversize-box 36

Bulolo No. 1 Dredge Blueprints

Physical Description: (1 item)
 

Item 1: Lancaster Iron Works, Inc. blueprints for Yuba Manufacturing Company, Dredge “Bulolo No. 1”, 1937

Physical Description: 30 sheets
oversize-box 37

Bulolo No. 1 Dredge Blueprints

Physical Description: (1 item)
 

Item 1: Lancaster Iron Works, Inc. blueprints for Yuba Manufacturing Company, Dredge “Bulolo No. 1”, 1937

Physical Description: 24 sheets
oversize-box 38

Various Dredger Blueprints

Physical Description: (2 items)
 

Item 1: Placer Management Limited No. 3 blueprints, 10 cu. ft., Dredge No. 5 and 7, 1935-1936

Physical Description: 29 sheets
 

Item 2: Placer Management Limited No. 3 blueprints, 10 cu. ft. Dredge No. 1-4, 1937

Physical Description: 8 sheets
oversize-box 39

Various Dredger Blueprints

Physical Description: (6 items)
 

Item 1: Placer Management Limited No. 4 blueprints, 13 ½ cu. ft. Dredge No. 3-5, 1937, 1941

Physical Description: 11 sheets
 

Item 2: Placer Management Limited No. 4 blueprints, 15 cu. ft. Dredge, 1944

Physical Description: 2 sheets
 

Item 3: Placer Limited blueprints, 15 cu. ft. Dredge (for Pato Consolidated), 1942

Physical Description: 2 sheets
 

Item 4: Placer Management Limited No. 5 blueprints, 5 ¾ cu. ft. Dredge No. 1, 1934

 

Item 5: Placer Limited No. 3 blueprints, 6 cu. ft. Dredge No. 6 and 10 cu. ft. Dredge No. 5, and Placer Limited No. 5 blueprints, 6 cu. ft. Dredge No. 1,

Physical Description: 10 sheets
 

Item 6: Placer Management Limited No., Water Jet Pump Blueprints, 1944

Physical Description: 2 sheets
oversize-box 40

Bulolo No. 5 Blueprints

Physical Description: (1 item)
 

Item 1: Placer Development Ltd. For Bulolo Gold Dredging, Ltd. blueprints, 10 cu. ft. Dredge, Bulolo #5, 1935-1936

Physical Description: 40 sheets
oversize-box 41

Bulolo No. 6 and Bulolo No. 5 Blueprints

Physical Description: (1 item)
 

Item 1: Placer Development, Ltd. blueprints for Bulolo Gold Dredging, Ltd., 13 ½ cu. ft., Bulolo No. 6, and Bulolo No. 5, 1935-1936

Physical Description: 35 sheets
oversize-box 42

Various Dredger Blueprints for Bulolo Gold Dredging Ltd.

Physical Description: (5 items)
 

Item 1: Placer Development, Ltd. blueprints for Bulolo Gold Dredging, Ltd., 6 cu. ft. Bulolo # 6 Dredge, 1936-1937

Physical Description: 15 sheets
 

Item 2: Placer Development, Ltd. blueprints for Bulolo Gold Dredging, Ltd., Bulolo #6, and Bulolo #5, 1934-1937

Physical Description: 13 sheets
 

Item 3: Bulolo Gold Dredging Company blueprints, 10 ½ cu. ft. Dredge, “Delta”, 1933

Physical Description: 1 sheet
 

Item 4: Bulolo Gold Dredging Company blueprints, 10 cu. ft. Dredge “Beta”, 1935

Physical Description: 2 sheets
 

Item 5: Bulolo Gold Dredging, Ltd. blueprints, 10 cu. ft. “Bulowat” Dredge (Lower Ladder Suspension Block) 1932

Physical Description: 1 sheet
oversize-box 43

Various Dredger Blueprints

Physical Description: (6 items)
 

Item 1: Placer Development, Ltd. blueprints, for Asnazu Gold Dredging Ltd., 5 ¾ cu. ft. Dredge, Bulolo Gold Dredging Company 6 cu. ft. #6 Dredge 1934-1935, 1937

Physical Description: 15 sheets (includes 1 hand drawn sheet)
 

Item 2: Placer Development, Ltd. blueprints for Pato Consolidated Gold Dredging, Ltd., 7 ½ and 8 ½ cu. ft. “Nechi” and “Pato” Dredges, 1934-1936

Physical Description: 8 sheets
 

Item 3: Gold Hill Dredging Company blueprints, Lower Comanche Dredge, 1940

Physical Description: 3 sheets
 

Item 4: Gold Hill Dredging Company blueprints, Dredge “Kister”, 1937

Physical Description: 3 sheets
 

Item 5: Walter W. Johnson Company blueprints, 7 ½ cu. ft. Dredge for Mitsui Company, 1939

Physical Description: 2 sheets
 

Item 6: Walter W. Johnson Company blueprints for Gold Hill Dredging Company, 7 ½ cu. ft. Close Connected Dredge, 1934

Physical Description: 8 sheets
oversize-folder 1

Dredger Encapsulated Blueprints

Physical Description: (13 items)
 

Item 1: Mississippi Bar, Blueprint Map layout (company holdings) Colorado-Pacific Dredging Company (cm 925).

 

Item 2: Walter W. Johnson Company blueprint, 6 cu. ft., Drive Details, Dwg. No. 432. 1936

 

Item 3: Walter W. Johnson blueprint, 12 cu. ft. Dredge No. 47, Details of BowLine Fair Lead, Dwg. 4332. 1937

 

Item 4: Walter W. Johnson blueprint, 12 cu. ft. Dredge No. 47, Details of BowLine Fair Lead, Dwg. 4331. 1937

 

Item 5: Walter W. Johnson blueprint, 12 cu. ft. Dredge No. 47, BowLine Fair Lead, Dwg. 4330 (for details see Dwg. 4331 & 4332). 1937

 

Item 6: Walter W. Johnson blueprint, 2 ½ cu. ft. Dredge #42, Main Drive Bearings and Gear Details, Dwg. No. 219. 1935

 

Item 7: Walter W. Johnson blueprint, 6 cu. ft. Dredge No. 51 and 53, Details of BowLine Fair Lead, Yreka Gold Dredging Company, Dwg. 4039 (for assembly see Dwg. No. 4040). 1936

 

Item 8: Walter W. Johnson blueprint, 6 cu. ft. Dredge No. 51 and 53, Details of BowLine Fair Lead, Yreka Gold Dredging Company, Dwg. 4041. 1936

 

Item 9: Walter W. Johnson blueprint, Yreka Gold Dredging Company, BowLine Fair Lead, Dwg. 4040 (for details see Dwg. Numbers 4039 and 4041).

 

Item 10: Walter W. Johnson blueprint, 4 cu. ft. Dredge No. 49, Ladder Castings and Roller Details, C. J. Berry Gold Dredging Company, Dwg. 766, 1936

 

Item 11: Walter W. Johnson blueprint, 4 cu. ft. Dredge No. 49, Details Digging Ladder Castings and Roller Details, C. J. Berry Gold Dredging Company, Dwg. 765, 1936

 

Item 12: Walter W. Johnson blueprint, 12 cu. ft. Dredge No. 45, Deck Sheaves, Defection, Flat and Stern Fairlead, Dwg. No. 705. 1936

 

Item 13: Joshua Hendy Iron Works, Preliminary General Arrangement Plan, 14 cu. Ft. x 100 ft. Tin Placer Dredge, (from accession 2010-025). 1944