This lock is described on p. 64: 'Pye did patent a bank lock in 1846 (Footnote #41).' The information about this is found in Footnote #40 on p. 347: US4406 7 March 1846. The patent number is correct; the Footnote numbering is not.

On p. 66 the book states 'Prior to Pye's 1851 Gold Medal, patents were issued for time locks to Rutherford in England (Footnote #42) and to Savage in 1847 in the United States (Footnote #43).' However the Rutherford patent referred to in Footnote #42 on p. 347 (US6105) is an 1849 US patent for a boiler water feeder and not a lock. The patent to Savage referenced in Footnote #43 is given as US5321, which is correct (9 October 1847). The Rutherford patent may be a UK (GB) patent. The full name of this inventor appears to be Williams Rutherford. I have been unable to access this patent reference on the EPO. Does anyone have this?

Jack