1945, war navy, registered fieldpost letter (form envelope) of the Office army postal service no. M 26710 Navy-post office Berlin to the Command the war navy in Berlin with mute postal stamp from 25.1.45 and fieldpost R-slip of paper with stamp overprint "XXVIII" ( = navy field post office Swinemünde 1) as well with cover stamp army postal service no. M 26710 = senior staff fleet command, good condition, Michel 250, 00