This cutler appeared in the Sheffield directory (1774), located at Pond Well Hill (where Porter Brook met the River Sheaf, close to the present bus station).  The ‘son’ was Andrew Lindley, who had been apprenticed to his father and became a Freeman in 1761.  By 1787, the address was Pond Lane and the enterprise was styled as a merchant and manufacturer of cutlery wares.  Moore (2021)¹ shows a medium-sized Barlow knife, with hatched bone scales, and Lindley’s trade mark: ‘SAILOR BOLD’.   Presumably, the knife was made before 1789, when Andrew Lindley (trading as Wm Lindley & Son) filed for bankruptcy.  Interestingly, he also partnered James Healey in steel refining (melting crucible steel).  This venture also became insolvent (Derby Mercury, 26 November 1789).  Andrew Lindley (presumably this cutler) was buried at St Peter & St Paul churchyard on 3 March 1808.

^1. Moore, Simon, ‘A Synopsis of Pocket Knives in History and the Evolution of Spring-backed Pocket Knives in Sheffield During the Seventeenth and Eighteenth Centuries’, Journal of Antique Metalware Society 26 (2021)