Hard to find out of print reference book: "German Etched Dress Bayonets (Extra-Seitengewehre) 1933-1945 " by 'Wayne H. Techet'. This hardcover book features 264 pages full of information regarding all types of etched bayonets and their counterfeits. The book is showing some normal traces of usage. This book is numbered and signed by the author. Very hard to find reference book for an in my opinion reasonable price, the few examples available online are all priced $300+. Super must-have reference work for the bayonet collector!