[San Francisco War Memorial.] Back of boilers showing gas-burner control. 1940. :425

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Courtesy of UC Berkeley, Bancroft Library

http://www.oac.cdlib.org/ark:/13030/tf3199p050/?order=1

Title:

[San Francisco War Memorial.] Back of boilers showing gas-burner control. 1940.

Contributing Institution:

UC Berkeley, Bancroft Library