Nummer: 05510d
| Area : | Western Area |
| Sea area : | North Atlantic |
| Date of attack : | 06.06.1941 |
| Time of attack : | 04:27 |
| Nationality of U-boat : | Italian |
| U-boat : | MARCONI |
| Commander : | Pollina |
| Grid : | 35.32n 11.05w |
| presumed target type : | Steam Freighter |
| presumed tonnage : | 8000 BRT |
| presumed result : | damaged ? |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Torpedo(es) |
| Convoy : | OG.63 |
| Name of target : | Handelsschiff |
| Actual result : | hit not observed |
| Footnote : | "Ariosto" in pos.41 observed torpedoes passing by at the time of "Veniero's" attack. During this operation only "Baron Lovat" and "Taberg" were lost most probably by the attack of "Marconi". |
| related attacks : | Angriff 1 Angriff 2 Angriff 3 |
| Convoy : | OG.63 |
| Route of convoy : | United Kingdom - Gibraltar (out) |
| Remark to convoy : | Sep 1939 to Jul 1940 via South Ireland, Jul 1940 to Aug 1943 via North Channel; later KMS. |