The 6.35mm (25ACP) OWA was manufactured by the Austrian Works Arsenal in Vienna in the 1920s. This particular gun was made in the second half of 1922. The 2" barrel has an excellent bore. The left side of the slide is marked from the muzzle CAL. 6.35 -ARSENAL. VIENNA AUSTRIA with the proof mark followed by the Austrian eagle and 22 (1922) below and below this is PAT. I.A. KUITURSAATEN. The gun has approx. 98% finish with the breechblock and trigger being bright. The checkered hard rubber grips, with OWA at the top, are excellent. The magazine is excellent. The action functions correctly. This is the nicest OWA we have seen in years. If you collect small pocket automatiic pistols, this gun is for you!