U-455 Giessler 23-May-1942 8 days
U-455 left Saint Nazaire on the 22nd of August to lay mines of Charleston, South Carolina. After investigating the waters of Newfoundland it moved south and completed its mine laying mission on the 18th of September. No ships were reported to have hit any of the mines laid by Giessler. After its incursion south of the Carolinas the boat called at the Gulf of Saint Lawrence and Cape Race, Canada – again without encountering Allied shipping. She arrived in Saint Nazaire on the 28th of October 1942.