1915 Print Mercury Vapor Engine Diagram Boiler Pipes - ORIGINAL HISTORIC SA1A XGVA2 Smith & Son

Smith & Son

Walter died

Avery and interior decoration by Rachel C

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1915 Print Mercury Vapor Engine Diagram Boiler Pipes - ORIGINAL HISTORIC SA1A XGVA2 Smith & Son"A Mercury Vapor Engine." This is an original 1915 halftone print of a diagram of a mercury vapor engine. (Please note that there is printing on the reverse.) CONDITION This 96+ year old Item is rated Near Mint Very Fine. No creases. No natural defects. No tears. No water damage. Product Type: Original Halftone Print; Grayscale Grade: Near Mint Very Fine Dimensions: Approximately 10 x 13. 5 inches; 25 x 34 cm Authentication: Serial Numbered