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Photograph

Drawing of an Aerial View of Deering Works

Date: 1919
Description: Drawing by H.M. Pettit of an aerial view of Deering Works in Chicago.
Photograph

Aerial View of McCormick Works

Date: 1919
Description: Drawing by H.M. Pettit of an aerial view of McCormick Works in Chicago. In the background is a storage area.
Photograph

Engineer's Drawings of Raney Grain Shocker

Date: 04 27 1915
Description: Engineer's drawing of small timer and fork guide loop. Written over the top: "Obsolete."
Photograph

Engineer's Drawings of Raney Grain Shocker

Date: 04 27 1915
Description: Engineer's drawings of setter trip stop connection bracket, fork guide pipe hinge. Written over the top: "Obsolete."

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