Construction status of the German submarine U 2277 in 1944

List of planning with deadlines for new construction of submarines by foreign shipyards dated Berlin 22 May 1944. Type XXVII. Yard Simmering (Cantieri Riuniti dell’Adriatico), Monfalcone, Italy. Date building ordered 28 March 1944. Date completion June 1944. 

Source

Deutsches Historisches Institut Moska. Records 500 findbuch 201253-file 152.