James Watt's Sculpture copying machinery (eidograph)
Sketch of the valves of James Watt's Sculpture copying machinery (eidograph) which accompanies letter BAW/14/031
Picture No
12919138
Media ID
46103534
Size
2544px x 3222px
(696KB)
Credit
The Institution of Mechanical Engineers / Mary Evans
Source
Boulton & Watt
Date
circa 1809
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1809 Accompanies Boulton Copying Eidograph Valves Watt
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