Datelined to the Aberdeen Proving Ground in June of 1955, "Submachine Guns, Volume One" is a thick collection of documentation on the pistol caliber automatic weapons of Germany through World War II, including original American research/analysis and photographs and photocopies of captured foreign manuals and resources. Included in the volume are early MP models from World War I, items introduced for World War II, secondary SMGs like the Steyr-Solothurn, and last-ditch items such as the MP-3008.