Image: Tracts vol 25 p79 B John Birkinshaw's patent for Malleable Iron Rails 1821 plate 2 of 2
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Description: Plate scanned in two elements. Plate description accompanies. John Birkinshaw's patent for Malleable Iron Rails 1821 original tract held in the North of England Institute of Mining and Mechanical Engineers and uploaded with the authority of their librarian Jennifer Hillyard.
Title: Tracts vol 25 p79 B John Birkinshaw's patent for Malleable Iron Rails 1821 plate 2 of 2
Credit: Patent Specification of John Birkinshaw for Malleable Iron Rails 1821 - original in North of England Institute of Mining and Mechanical Engineers.
Author: John Birkinshaw
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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