[lugerholsterrepair]

Tim, From the photo i doubt if this is a nickle finish. Nickled pistols aquire a yellow tint over the years. It is quite noticeable on Luger magazines. It is a soft yellowish color to the silver of nickle. Chrome does not have this charecteristic. It is bright and stays that way. In general, chrome is thicker as well. Look for underlaying buffing, if the original blue was removed it was likely buffed and the numbers and letters will be washed out. Sharp edges will be rounded.
Maybe a Mauser expert will come on and blow me out of the water....Jerry Burney