1915 Print Mercury Vapor Engine Diagram Boiler Pipes - ORIGINAL HISTORIC SA1A ESQ1 There is a small crease

There is a small crease in the bottom right corner --please see image

Thorne and J

An ideal (and calorie-free) gift for the chocoholic in your family

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1915 Print Mercury Vapor Engine Diagram Boiler Pipes - ORIGINAL HISTORIC SA1A ESQ1 There is a small crease"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