Re: Nazi Stamped Colt Model 57 in 30-06
Per the Blue Book, approximately 5000 Colt Model 57 sporting rifles were made in 1957 by Jefferson Mfg. Co. in N. Haven CT, using new FN Mauser actions.
But that is not one of them; the action is from a German K.98k military rifle, which explains the Nazi markings. The rifle, as it is now, would never have been put out with the Colt name. FWIW, I think a Colt 57 barrel was put on a WWII Mauser military rifle action by a gunsmith. The pictures show that the barrel and receiver condition don't match and the parts were certainly not together originally.
The rifle is strictly a shooter, with no collector value at all. Value would be around $200 if the work is well done.