Stamp Counterfeiting: The Evolution of an Unrecognized Crime
A retired postal inspector, H.K. Petschel investigated many of the postal counterfeits in the 1970s and authored the manual for counterfeit investigations for the U.S. Postal Inspection Service. He has written and published numerous articles to bring national attention to the problem of postal counterfeits. The author also of "Spurious Stamps," he has long been recognized as an authority in the field. Today he lives in northern Idaho, where he continues to research stamp counterfeiting when not exploring the Western mountains or Canadian north.