Plans for throttle valve gear for derrick COMPTROLLER, June 21, 1911
gelatin glass negative
PHOTOGRAPHS - GLASS NEGATIVESChapman Derrick & Wrecking Co.
1911-06-21
glass
5 x 7 in.
Gelatin glass negative of Merritt-Chapman & Scott Corp.; plans for throttle valve gear for derrick COMPTROLLER, June 21, 1911; plan 1-B-43.
1964.660.4427