Well, as noted,, the hammer & trigger show jeweling,, and that's not factory. The blueing is truly nice & my first thought is also "re-blue." I can't see the serial number,, but if it gets listed here, or even partially listed,, we can check the RENE Guide for the year for you. (Example; 30-123xx)
Often,, the Ruger factory web info isn't "correct" so we only have (2) ways to truly verify things. First,, as noted,, a factory letter for $10, and that is excellent. And the RENE Guide,,, which is often better info with more details too.
Nice looking gun for sure.