Penpol
| Name | Penpol |
| Type | Steamer |
| GRT | 2,061 tons |
| Country |  British |
| Built | 1891 |
| Builder | Harvey & Co., Ltd., Hayle |
| Operator | Penpol SS. Co., Ltd. (R. B. Chellew), Falmouth |
| History |
U-boat attacks on Steamer Penpol
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 20 Jun 1917 | UC 57 (Friedrich Wißmann) | prize | Raumo-Wasa area | Petrograd - ? | 0 | ||
| Captured (taken as a prize) in the Baltic. | ||||||||
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