The Superposed was the last gun designed by John Browning, according to Ned Schwing’s opus, which is aptly titled The Browning Superposed: John M. Browning’s Last Legacy. Browning was an engineering genius, with many of his designs still in production today. His vision for this particular gun was for it to be a high quality but affordable shotgun, especially considering the price of European over-unders at the time. Browning’s design took into account weaknesses in other designs in this configuration, specifically looseness in the breech. He reinforced the hinge mechanism in order to ensure tightness for the long haul. Browning went to Fabrique Nationale (FN) in Liege, Belgium with his design, after having great success with the Auto-5 earlier. Unfortunately, he wouldn’t get to see the success of the Superposed; John Browning died in 1926. The design itself was finished by other members of the family, including refinements to both the ejector system and a few different trigger designs. The first Superposed wouldn’t be sold until 1931.