Document grouping to Feldwebel Wilhelm Koslowski serving with III./Jagdgesschwader 51 "Mölders" in the "Battle of Britain" and Jagdgeschwader 2 "Richthofen".
Certificate Luftwaffe Pilot's Badge. Issued on 9. December 1936. Original signed. Folded. Minor signs of use.
Certificate Sudetenland Medal. Issued on 1. August 1939. Signed by Oberst Gerd von Massow.
Certificate Squadron Clasp for Jäger in gold. Issued on 24. May 1941. Signed by Oberstleutnant Werner Mölders (Knight's Cross with Oak Leaves, Swords and Diamonds winner). Folded. Minor signs of use.
