Germany, Kriegsmarine. An Extremely Rare Pocket Manual for a Type XXI U-Boat

(U-Boot-Klasse XXI Gerätehandbuch). A rare and complete pocket-size manual for a Type XXI U-Boat, constructed of a card stock binding, the cover stamped with the logo of the Bremen-based manufacturer Deutsche Schiff und Maschinenbuch Aktiengesellschaft”, the interior with 36 highly-detailed fold-out charts detailing all mechanical specifications of the late-war U-Boat model, minor age-appropriate material fatigue evident, in overall complete and near extremely fine condition.

Footnote: Pocket-size technical manuals, such as the example offered, were issued to all crew members assigned to operational and technical duties aboard Kriegsmarine U-Boats.