Technology: section and elevation of the Bramah and Marshall locks. Coloured engraving by J. Pass, 1813.
- Pass, John, active 1797-1815.
- Sep.r 6 1813
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About this work
The Bramah lock was so ingenious that it defied picking, despite a reward of 200 guineas, for 67 years
Lock. Fig. 1 to 8. Bramah's locks. 9 to 16 Marshall's secret escutcheon. ; J. Pass sc.
London : G. Jones, Sep.r 6 1813
1 print : engraving
H.W. Dickinson, "Joseph Bramah and his inventions", Newcomen Society Transactions, XXII, 1941-42
Wellcome Library no. 44377i