1941, army postal service cover with content and mute stamp from 22.12.41 as well with cover stamp and senders note army postal service no. M 26896 = destroyer "Z 30", the at that time in the Baltic Sea in the line of duty was, and a photography from captain at sea Heinrich emperor, the from 15.11.41 to 10.3.43 commander from destroyer "Z 30" was, good condition