1944, war navy, registered fieldpost letter to the naval supreme command North Sea in Wilhelmshaven with mute postal stamp from 8.6.44 and fieldpost R-slip of paper with handwritten indication "XXVIII" ( = navy field post office Swinem++nde 1) as well with service stamp army postal service no. 00996 ( = admiral the sea commanding places) and cover stamp, the envelope is two-sided opened, otherwise but good condition, Michel 250, 00