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Unfortunately, the early US "Patent" guns are not worth as much as the later USFA guns. Early "Patent" guns were a mixture of American made and Italian import parts, finished and assembled here. I believe that Uberti was the supplier of most of the imported parts, including frames. USFA's are now 100% American made. The transition from part import to all American was a gradual process.
I have seen USPFA in "as new," unfired condition selling in the $500 to $600 range. They are pretty guns but the quality is not up to current USFA standards.