These models are similar to the one you are viewing.
double action, thumbrest grips, round hammer with spur, adj. rear sight, 6.1 or 8.1 in. barrel, 25.6 or 27.2 oz. Mfg. 1953-70.
similar to pre-war PPK, .22 LR, .32 ACP, or .380 ACP cal., 3.31 in. barrel. Mfg. post-war-1999, U.S. import stopped by GCA 68 on W. German and French production.
.22 LR or .25 ACP cal., updated version of Model 9, 6 shot, 2.6 in. barrel, concealed hammer, 12 oz. Mfg. 1961-1971.
.22 LR or .25 ACP cal., double action, 2.8 in. barrel, 6 shot, alloy frame, blue, fixed sights, plastic grips, 11 1/2 oz. Mfg. 1968-98 in W. Germany, U.S. import stopped by GCA of 1968.
7.65mm Luger, 9mm Para., or 9x21mm cal., double action, alloy frame, ejection port on left side, frame mounted decocking lever, 3 1/2 in. barrel, adj. rear sight, blue finish only, 8 shot mag., auto safeties, 28 oz. New 1977-currently imported by Earl's Repair Service.