Luftwaffe visor cap for EM and NCOs. Unlike an officer's cap which was always worn with a silver bullion piping, EM and NCOs had a colored piping that indicated the branch they were serving for. 

Branch: Anti-aircraft. Red piping.
Insignia: Cink cap eagle and wreath badge. One pin of the wreath badge is loose, but still firmly in position. 

Chin strap: textbook black strap for EM and NCOs. Correct buttons period time attached.

Lining: fine yellow color silk lining. 
Celluloid diamond: undamaged, with name shield of "Flieger Hermann Kühler", which is unusual for this branch - but all original, and manufacturer logo of "Clemens Wagner Braunschweig" 
Sweat-band: actually no signs of wear. 

Really nice late-war visor-cap in great condition, only some small moth bites on the piping.