Halfdan
Photo courtesy of Danish Maritime Museum, Elsinore
| Name | Halfdan |
| Type | Steamer |
| GRT | 1,305 tons |
| Country |  Danish |
| Built | 1906 |
| Builder | Sunderland SB. Co., Ltd., Sunderland |
| Operator | A/S Dampsk. Selsk. Skjold (L. H. Carl), Copenhagen |
| History |
U-boat attacks on Steamer Halfdan
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 6 Dec 1916 | UB 37 (Paul Günther) | Sunk | Captured and then torpedoed about 20 miles south of Eddystone | 50° 10'N, 4° 12'W | Newcastle - Livorno | coke | 0 |
| Location given as 49°52’N, 4°11’W per KTB. | ||||||||
Position of attack on Halfdan
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