- 1Reference: R3/492
Title: Correspondence from Wynne, J.V., mainly Bedford House to Percival Beaumont: Reads- Yesterday a drill...
Level of description: item
Date Free Text: 17 July 1767
Production date: From: 1767 To: 1767 - 2Reference: R4/4076/23
Title: Report on John Wing's experiments with the drill in 1797, sent to Earl Fitzwilliam in January 1801
Level of description: item
Date Free Text: 1797 - 1801
Production date: From: 1797 To: 1801