A 112 page card cover book titled "German Naval Artillery"  by Miroslaw Skwiot.

This is Number 18 in the "Gunpower" series and is Volume II of this title.  In this book the author looks in detail at German Naval artillery in the Second World War on Cruisers, Battleships, Destroyers etc giving plenty of detail on the types of ammunition used.  In addition to the text there are black and white photographs, drawings and colour illustrations of gun turrets and naval vessels.

The text is in English and Polish and the book is in very good condition.