1944, war navy, registered fieldpost letter to the Command the war navy in Berlin with mute postal stamp from 20.8.44 and fieldpost R-slip of paper with stamp overprint "XV" ( = navy field post office Lübeck-Travemünde 1) as well with service- and cover stamp army postal service no. M 29340 = school association torpedo training ship "Hugh Zeye", good condition, Michel 250, 00