Any idea of the production year?
If this gun is stamped 35-03-XXXX-XX (serial number) on the barrel flats and/or watertable, the last two numbers will be the year it was built.
If the serial number is not hyphenated it then will have a date code stamped into the barrel flats with either just a letter or a letter and a number. Here's a chart to cross reference:
http://www.hallowellco.com/proof_date_codes.htmThere is a reference to this gun possibly being hand engraved. IMO, it appears to be mostly machine engraved. On the left side of the action you can see where the engraving border almost runs off the rear of the sideplate.