1940 and 1941, army postal service picture postcard (coffee "crown prince" in Hamburg-Altona) with machinery stamp Hamburg 1 from 29.2.40 with advertising insert "war WHW" as well with cover stamp army postal service no. M 14891 and army postal service cover with mute stamp from 9.1.41 as well with cover stamp and senders note army postal service no. M 14891 = destroyer "Z 15" "Erich Steinbrinck", good condition