1878 Prints Automatic Gas-Pumping Engines Antique Machinery Welch & Lawson MAB1 XGN3 There is acid staining in

There is acid staining in this image

This is an original 1935 black and white print ad for Mackintosh-Hemphill of Pittsburgh

This is an original 1877 black and white wood engraving of a bridge of boats in Arnhem

This is an original 1924 color print ad for the Insurance Company of North America and the Indemnity Insurance Company of North America located in Philadelphia

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1878 Prints Automatic Gas-Pumping Engines Antique Machinery Welch & Lawson MAB1 XGN3 There is acid staining inThis is a set of two original 1878 halftone prints of the Automatic Gas Pumping Engine, manufactured by Welch & Lawson, 176 Center Street, New York City. Fig. 1 shows a perspective view of a Gas Pumping Engine. Fig. 2 shows a vertical section of a Gas Pumping Engine. Please see both images. CONDITION This 133+ year old Item is rated Very Fine +++. Light aging throughout. No creases. No natural defects. Some light surface rub. No tears. No water