That is a nice cap.
NEC SOLI CEDIT
Nice cap, but the kokarden are for enlisted ranks, not an officer.
very nice shape, real one looker, nco cap and I like the oilskin sweatband and silk lining.
May actually be the 1907 field grey issue cap (melton cloth on the crown was generally pre war) rather than m15 ( when tunic wool was used for the crown).
Classic cap !
"The German Army is the perfectly adapted, perfectly running Machine. The difference is that the Germans are organised with a view to War...with the cold, hard, practical and business-like purpose of winning victories."
G.W. Steevens - The Daily Mail (1897)