These are normally found with a high polished blued finish. Were available with a nickel finish, engraving, or both, as well as fancy grip material and NIROSTA marked barrel. Regular caliber is 7.65mm, but a very few are known in .22 LR that are probably proto-type pistols. Note: Add $100 for nickel finish; $250 for engraving; $350 for both; $500 with nickel, engraving and a fancy grip material; $500 for NIROSTA marked stainless barrel; 300 percent for .22-caliber.