I can't comment on the fair market price of your Model 21, however, I can comment on Auction House procedures. The "house" will always give the consignor a high estimate range in hope of getting the gun into the auction. If the gun doesn't reach bid level, well that's your problem...it was just a "best guess" anyway. Of course, if you set a reserve price, you'll pay additional fees on top of the fees for advertising and promotion, and the sales commission if it does sell. After deducting those fees you'll probably find it of more value to sell to a knowledgeable buyer on a site like this one. With the provenance you have for the gun there will be interest.
