| Archive Reference / Library Class No. | LS/622 Oversize |
| Title | Gregory Mine: photostat copies of plans. |
| Date | nd |
| Repository | Derbyshire Record Office |
| Further Information | Photostats of Gregory Engine made by Francis Thompson for the Gregory Mine, Ashover 1774: 1 - Inside view from lever wall; 3 - "A draught of the fire engine at Gregory's Mine" 1774; 4 - Gregory Engine outside front view; 6 - Gregory Engine plan of one pair of stairs; 8 - Gregory Engine general section. |
| Original photostats kept at Chesterfield Local Studies Library. Numbers 2, 5, 7 are negative copies not reproduced here. (Chesterfield location no. L6841, L620). |
| Term | Lead mines |