Difficult to find and official classified US Army Manual 'Demolition Materials handbook'' or FM9-1946, dated 1955 and for use in the Vietnam War among others, with over 180 pages! Highly interesting, extensive manual describing boobu traps, improvised explosives and unconventional warfare. Such manuals would be carried by special units and were at heart of the vietnam operations (see history below). A must-have for the US Vietnam collector, great and difficult to find manual! See also our other interesting WW2 items that we offer for auction on catawiki!