AKA "Clawson's Big Book". Distinct from later, smaller "Collector's Guide" or Commercial Series guide. Development and Production 1900 through 1945. Plus Foreign Pistols, Gallery Pistols, Revolvers, Cartridge Development, and much more. Long touted as the definitive "Bible" of Colt Model 1911 handguns, this must-have book covers the years from 1911 to the end of Model 1911 production in 1945, including complete military identification and all contractors.