I assume what you call heirloom is the leather holster

? Now that it is saddle soaped it looks like new!
Yes as a matter of fact the rust spots are surprizingly almost gone: last time i sprayed the gun with gun oil, and covered it with a clean cotton cloth which was also sprayed with oil. It spent a year in this cloth and when I reopenened it last month most rust was like dyed in the cloth but the gun, after a gentle wipe was almost rustfree( such as on the pics ). I guess all i need now is the number 19 extractor I still haven't taken the time to find, and spare parts I can use to fire the gun and preserve the original ones "in case"!
Mish