Adria 1
| Name | Adria 1 |
| Type | Steamer |
| GRT | 1,809 tons |
| Country |  Italian |
| Built | 1877 |
| Builder | Flli. Orlando, Livorno |
| Operator | Sicilia Soc. di Navigazione, Palermo |
| History | Built as Ortigia. |
U-boat attacks on Steamer Adria 1
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 19 Jul 1918 | UB 50 (Heinrich Kukat) | Sunk | Torpedoed in the Strait of Sicily | 37° 10'N, 11° 12'E | Palermo - Tunis | cotton |
Position of attack on Adria 1
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