This is a unique and interesting German proofed .22 rimfire target pistol. It uses a simple blowback slide, which locks open after each shot. It is striker fired, with a 12-inch barrel and a quite nice trigger. The top of the receiver is marked “Alk” in a fancy script engraving, and also has a partially legible line that was probably the location of manufacture (only “BURG” is legible now). I don’t know anything about the history of the gun, but it strikes me as probably a one-off creation by a mechanically inclined target shooting enthusiast.