German History of Espionage book - Die Weltkriegs Spionage

A local Maryland family donated the book, Die Weltkriegs Spionage. This oversized hardback 690-page book was published in 1931 and appears to be a comprehensive history of spy techniques. The NCM Library already has this book so the Foundation will auction the book at a General Membership Meeting. This book lists for about $250, and one recently sold on eBay for $150. Pictures of the cover and facing page are included here.