Souvenir
| Name | Souvenir |
| Type | Sailing vessel |
| GRT | 549 tons |
| Country |  Danish |
| Built | 1877 |
| Builder | A & F Smith, Tvedestrand |
| Operator | Chr. Nielsen, Odense |
| History | Wooden bark. Built as Ocean, later sold and renamed Asvald. |
U-boat attacks on Sailing vessel Souvenir
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 29 May 1918 | U 101 (Carl-Siegfried Ritter von Georg) | Sunk | Stopped and sunk by unnery | 51.47N, 07.26W | Swansea - Odense | coal | 0 |
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