A WWII-era clandestine manual for British Home Guard Auxiliary "stay behind" parties (Auxunits) covering the use of explosives.
Issued under the cover title of "The Countryman's Diary 1939" by "Highworth Feritilisers" in an attempt to disguise the contents of the manual.
Originals are extremely rare and usually unobtainable. This is a professionally-bound reference copy designed for the researcher and historian. Funnily enough it's more substantial and better-produced than the originals, which were simply sheets of typing paper folded in half and staple bound into a leather-look card cover.