1942 - 1949, Stalingrad and Russian captivity, two fieldpost service letters from a staff sergeant (later Lieutenant) with the fieldpost number 15693 ( = II. kind. Rgt. 53 as army troups near the XIII. Armekorps the 6. army), of it a cover from the boiler, in addition to it two franked covers anonymous with secret messages via eavesdropped enemy radio radio free Germany as well a few KGF cards from of the Soviet Union, interesting documentation and associated with the both reforwarding messages from radio free Germany from March 1945 very rare!