Perra
| Name | Perra |
| Type | Steamer |
| GRT | 1,682 tons |
| Country |  Norwegian |
| Built | 1891 |
| Builder | J. Priestman & Co., Sunderland |
| Operator | D/S A/S Perra (Steen Giebelhausen), Christiania |
| History |
U-boat attacks on Steamer Perra
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 27 Nov 1916 | UB 18 (Claus Lafrenz) | Sunk | Stopped and scuttled 8 miles N of Casquets
| 49° 52'N, 2° 23'W | Castro Urdiales - Calais | iron ore | 0 |
Position of attack on Perra
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