Date of origin:
[back] 1 [1 is circled] ; Reduce to 4 1/4″ x 5″ ; Return Photo to HARRY E. CHRISMAN 10245 W. 14th Ave. Denver, Colo. 80215 ; PITTSBURGH PLATE GLASS CO. PUBLIC RELATIONS DEPT PITTSBURGH 22. PA NEGATIVE NUMBER 4237-3 [4237-3 is underlined] ; [photo has a diagonal line down center and a box drawn in right bottom corner]
[note] Charles E. Hancock, as a young glassblower, saw the beginning of the Cylinder Process, himself blowing cylinders with the machine as great as [24 written and crossed out] 40 feet in length. These cylinders were cooled, the ends cut off and the cylinder slit down the side, re-heated and then flattened [insert mark] for window glass. With Thomas A. Edison, he agreed there was no reason why the glass could not be drawn flat from the molten pot. [flat from the molten pot. is underlined] The above photo shows the Cylinder Process at [? typed and crossed out, is illegible] its highest development. The [insert mark] 40-foot cylinders were drawn from the melting tank. The “cradles” in the foreground would rise to receive the cylinders, they would then be lowered and [insert mark] the cylinders processed into window glass. Photo courtesy the Pittsburg Plate Glass Company, Public Relations Dept. Pittsburg, 22, PA. [Photo courtesy the Pittsburg Plate Glass Company, Public Relations Dept. Pittsburg, 22, PA. is underlined] ; Copy K-2 [Copy K-2 is circled]
[job form] Job #302760H ; Ref # 25 ; .18/1.63 ; Page # 144-N ; HT [HT is circled] ; Shoot at 61%
Photo is of a factory. There are huge, long, upright cylinders and metal beams. There are windows in top sides. There is a little building with stairs leading up to it. There is a man in little building. There are huge “cradles” on floor that line up with huge cylinders standing upright. There are 2 men working next to “cradles”.
