Container List

List of Retailers ca. 1920

Invoice 1922

Bolt lists for the No. 24 and No. 30 Subsoil Plows 1922

Drawings for Advertisements

Product Catalogs 1909 and 1912-1913

Newspaper advertisement for the Knapp Tractor Disc Plow ca. 1912

Brochures for plows; one non-proprietary brochure for a plow; tag for a Knapp product ca. 1912

Bills of material for the 2-Bottom Offset Disc Plow 1947

Notes; drafts of outgoing letters; copy of a letter from the Smithsonian Institution 1946-1970

Brochures ca.1946

Envelope for the 2-Bottom Offset Plow

Price list for the Knapp Reversible Plow 1947

Three articles about Robert I. Knapp and the Knapp Plow Company; article about the Columbia Hotel (Knapp's Folly) 1966-1977

Instruction manuals for the 2-Bottom Offset Disc Plow and the Stabilizer 1946 and 1948

Issue of The Machinist 1951

Specifications, numbered K407, K409, K411-K412

Specifications, numbered K415, K418, K432

Specifications, numbered K429, K432, K433, K441, K441 and K444, K444, K445, K445 and K428

Specifications, numbered K449, K456, K460, K470-K474, K476, K485, K497, K510, K522

Specifications, numbered K530, K533, K530 and drawings for the kickstand

Assembly diagrams; drawings and blueprints of the formed clamp bolt for the Stabilizer and Stabilizer link

One album of photographed letters to the company 1922-1923

5 photos of gentlemen posing with plow

2 photos of disc plows, 1924; 1 photo of a horse-drawn plow

Studio photos of orchard plow, numbered 7A-14A

Studio photos of orchard plows, unnumbered

Field photos of orchard plows, numbered 15A-19A, 21A-24A, 27A-28A, 30A-31A, 34A-36A; one unnumbered colorized photo

Studio photos of subsoil plows, numbered 38B, 41B, 43B-50B

Studio photos of ditching, gopher and subsoil plows, unnumbered

Field photos of subsoil plows, numbered 54B-57B, 59B-63B, 65B, 67B, 73B

Studio photos of cultivators, numbered 77C-82C, 84C; one unnumbered studio photo of a cultivator and one unnumbered studio photo of a tractor disc plow

Field photos of cultivator, numbered 85C-89C; two unnumbered field photos of the tractor disc plow

Field photos of 3 disc plow and 12 disc plow

Mounted photo of Knapp side-hill plow parts, tractor and plow

7 photos of 3 disc plow with tractor (orchard in winter)

2 photos of 3 disc plow and tractor, 2 of orchard, 1 of ditching plow and tractor, 1 of plow and tractor (winter)

4 photos of subsoil plow, unnumbered, 2 of field

31 photos of the 2-Bottom Offset Disc Plow; 4 photos of the respective parts ca. 1946

Duplicates of some of those found in Box 2

2 Bottom Offset Disc Plow parts specifications numbered K405, K407-K418

2 Bottom Offset Disc Plow parts specifications numbered K420-K422, K424-K427, K429-K433

2 Bottom Offset Disc Plow parts specifications numbered K438, K440-K447, K449, K456-458, K460, K462-463

2 Bottom Offset Disc Plow parts specifications numbered K470-K474, K476, K479, K485, K491-K497, K510, K511

2 Bottom Offset Disc Plow parts specifications numbered K515-517, K528, K530-K531, K533-K534, K4423

Original Drawings, Knapp Plow Company

Original Drawings

Blueprints 1946-1947