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| Archive Reference / Library Class No. | D982/4/2/11 |
| Former Reference | D982/5/86 |
| Title | Blueprint of the application of roller journal bearings to the worm shaft of a reduction gear in a 10-ton crane |
| Date | 31st Mar. 1926 |
| Level | Item |
| Repository | Derbyshire Record Office |
| Archive Creator | Eagle Star Foundry, Belper (Smedley Bros) |