Plans for details of "A" frame and "A" frame girders for 25 ton derrick CHAIRMAN, April 17, 1907
gelatin glass negative
PHOTOGRAPHS - GLASS NEGATIVESChapman Derrick & Wrecking Co.
1907-04-17
glass
overall: 5 x 7 in.
Gelatin glass negative of Merritt-Chapman & Scott Corp.; plans for details of "A" frame and "A" frame girders for 25 ton derrick CHAIRMAN; April 17, 1907; plate 663.
1964.660.3877