Machinery: a lever-operated forge hammer and anvil, in plan and three-quarter view. Coloured engraving by J. Pass.
- Pass, John, active 1797-1815.
- 7 May 1808
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About this work
Hammer. Mr. Walby's new-invented hammer. ; J. Pass sc.
London : J. Wilkes, 7 May 1808.
1 print : engraving, with watercolour ; platemark 19.2 x 25.1 cm
Wellcome Library no. 45462i