Nummer: 00508
| Area : | Western Area |
| Sea area : | North Sea |
| Date of minelaying : | 05.09.1939 |
| Nationality of U-boat : | German |
| U-boat : | U 15 |
| Commander : | Buchholz |
| Grid : | AN 5856 |
| presumed target type : | --- |
| presumed tonnage : | ---- --- |
| presumed result : | hit not ascertained |
| Used weapon(s) : | Sea mine(s) |
| Date of sinking : | 21.10.1939 |
| Nationality of target : | British |
| Actual type of target : | Steam Freighter |
| Name of target : | Orsa |
| Year of launch : | 1925 |
| Actual tonnage : | 1478 BRT |
| Actual result : | sunk |
| Position of target : | 15sm 150° Flamborough Hd. |
| updated on: | 00.00.0000 |
| Remark: | trace 2003 |
| Changes: | 1) Minenerfolge: 5.9.39 2) Zimmerman 3.2000: trace 2003 |