Headgear of Hitler's Germany

Vol. 1: Heer - Luftwaffe - Kriegsmarine

By Halcomb, Jill and Saris, Wilhelm P.B.R.
1989, R. James Bender Publishing
ISBN 0912138416

Descripton: Very good coverage of title of the book. The first one in a series of six books covering this subject. The part of the book concerning U-boats deals with the emblems worn on the headgear used by these men.