Bohne, Dr Werner M.: Reference Manual of Forgeries, 15 ring binders with thousands of pages, countless illustrations and very detailed descriptions of forgeries, published by the Germany Philatelic Society from 1975 to about 2000. Format approx. DIN A5, art paper, loose-leaf, in good condition. Comprehensive and famous work about forgeries of every German Aerea. Very rare this complete. Estimate: 300 Euro
