Original Patent with Drawings


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Price: $1,600.00

Date Published: 1856

Description: 4 pages on oversize vellum, 19 x 13.5 inches -- a very scarce patent issued to William M. Henderson, April 8, 1856, a resident of Baltimore, Maryland, with two original highly detailed drawings, colorized on heavy wax paper identified as "IMPROVEMENTS TO SLIDE VALVE ENGINES" with a technological page devoted to the explanation on how Henderson's invention would function. Fine signature by the Secretary of the Interior, Robert McClellland, with all ribbons and seals intact. Near fine.

Comments: William Henderson was a mechanical engineer and inventor credited with designing and improving a slide valve engine, a force pump, hydraulic brakes, and components associated with the steam engine.

Signed: Y
Binding: unbound
Language: English
Type: Autographs

Book ID: 213462

More AUTOGRAPHS: webrss
More ENGINEERING: webrss
More INVENTION: webrss

By This Author: HENDERSON, William M.
By This Publisher:
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Hello. The book was just delivered in Paris. Thank you so much for taking such care in the packing of it, it arrived in excellent condition. It may be hard to believe but not everyone is so attentive... W. R.
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