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| Title | Railway engines; marine engines |
|---|---|
| Creator | D Napier & Sons |
| Date of Creation | 1950 |
| Description | Acton test bed, showing the prototype Deltic engine after the failure of the crane cable. Stamped on rear - D Napier & Son Ltd, Publicity Department, Photographic Ref. No. 3106W, and Secret. |
| Archive Reference | NAP/4/3/10/19/12 |
| Media | Photographic print |
| Dimensions | N/A |