Welcome to the forums from the Wiregrass! What is the barrel length? What condition is it in? Does it come with box, papers and tools?
A good way to gauge the current market is to go to gunbroker.com, open up closed auctions in advanced search and see what guns actually sold for.
I can remember when the 6" came out and Montgomery Wards got a bunch in. They sold them at the list price and I bought a few of them. Well, in Calif. if you buy 2 or more guns at a time, a separate paper goes to the ATF. A while ,later, I was paid a visit at my house from 2 ATF agents wanting to know why I bought several of the new 66's. It resulted in my getting a dealers license. I bought the guns to make a substantial profit, and I did. Wards sold all they had in one day. Big LarryI gave a premium for the one I bought in January of 1974....$ 175.00 OTD.
In today dollars, for one that is 99% + box & docs/tools...I think in the neighborhood of a grand.
Welcome to the forum