Primo
| Name | Primo |
| Type | Steamer |
| GRT | 1,037 tons |
| Country |  British |
| Built | 1908 |
| Builder | J. Meyer’s SB. Co., Zalt-Bommel |
| Operator | The Shipping Controller (J. J. Thomas & Co.), London |
| History |
U-boat attacks on Steamer Primo
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 18 Sep 1918 | UB 117 (Erwin Waßner) | Sunk | Torpedoed 3.5 miles NNW of the Godrevy LH at 8.30pm | 50° 17'N, 5° 28'W | Penarth - Rouen | coal | 0 |
Position of attack on Primo
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