To disassemble, the magazine is first removed and the slide is pulled back and then allowed to move forward slowly until it comes into a position where it can easily be lifted off. 1910, but internally it is quite different (Fig. The pistol has an outward appearance similar to the F.N. The first prototypes are thought to have been made in Belgium in 191516. The pistol was designed by Heinrich Ortgies, said to have been a German by birth but who was a resident of Liege, Belgium, until about the close of World War I. The Ortgies pistols are unique in design, although inevitably they have some features in common with other automatic pistols.