Operation Mincemeat and spycraft in World War Two

Fascinating:

Operation Mincemeat and spycraft in World War Two : The New Yorker: "On April 30, 1943, a fisherman came across a badly decomposed corpse floating in the water off the coast of Huelva, in southwestern Spain. The body was of an adult male dressed in a trenchcoat, a uniform, and boots, with a black attache case chained to his waist. His wallet identified him as Major William Martin, of the Royal Marines. The Spanish authorities called in the local British vice-consul, Francis Haselden, and in his presence opened the attache case, revealing an official-looking military envelope."