A Luftwaffe summer visor cap for officers with a removable white top. 

Typical black cap band with bullion piping to the top and bottom.

Piping: Officer's bullion piping to be worn by any branch
Sweat-band: Clearly worn. Minor sweat-stains.
Lining: Silk
Celluloid diamond: intact

Markings: "EREL SONDER KLASSE EXTRA" maker and quality markings. "Verkaufsabteilung der Luftwaffe"

Top: removable. Good condition. Very fine and soft quality.
Insignia: Aluminum. Correct hand-embroidered officer's wreath badge. Correct embroidered officer's cap eagle mounted on a zinc backplate with three prongs as it should be. Removable!

A very nice cap! Great shape!

Name tag. Wilhelm van Koolwijk
Van Koolwijk was awarded the Knight's Cross as an Oberst serving with Flak-Regiment 37 on 8.8.1944. There is no proof it is truely his cap. The paper name tag could have been added any time.