Polvarth
| Name | Polvarth |
| Type | Steamer |
| GRT | 3,146 tons |
| Country |  British |
| Built | 1909 |
| Builder | Sunderland SB. Co., Ltd., Sunderland |
| Operator | Polvarth SS. Co., Ltd. (W. Badcock), Swansea |
| History |
U-boat attacks on Steamer Polvarth
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 20 Dec 1917 | U 86 (Alfred Götze) | Sunk | 35 miles W of Ushant | 48.20N, 06.00W | Gibraltar - Swansea | zinc ore, phosphates & naval stores | 2 |
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