The U-352 is a type VIIC U-boat built by Flensburger Schiffbau-Gesellschaft in Flensburg, Germany in 1941. According to online U-boat database uboat.net, U-352 was launched on May 7, 1941, and commissioned on August 28, 1941.
A comprehensive history of U-352, written by Robby Myers, can be found here: https://www.scubadiving.com/history-north-carolina-u-352-shipwreck
Additional historic information can be found here: https://uboat.net/boats/u352.htm
Annotated blueprints of U-352, where artist Kevin P. Wallace scribes historic accounts of the battle between U-352 and Cutter Icarus, and of POW interrogations.
U-352 POW officers Ens. Ernst Kammerer, Capt. Hellmut Rathke and Lt. Oskar Bernard are photographed upon arrival at Fort Bragg.
U-352 commander, Capt. Hellmut Rathke, marches his crew of POWs to the mess hall at the Charleston Navy Yard.