You gotta tell us more. Was this a random find or did the guy your dad sold the gun to never leave the town and he sold it locally, allowing you to get it?
Didn't want too ramble to much, so here's the rest of the story.
My late Dad acquired the Trooper in the early '70's. (I think I've located the original owner, a retired policeman).
It became his home defense, "nightstand" gun for many years. He hardly ever shot it.
About 20 years ago he decided he wouldn't be travelling to Colorado or Canada to big game hunt any longer.
He asked me to help him "sell some of his guns".
I did just that.
A local buyer/collector responded to my ad and met me at Dad's house.
Dad had laid out about five of his hunting rifles, 348 Weatherby mag (his "bear gun"), BAR in 300 Win Mag, Weatherby .270, a .243 of some kind and his 7mm mag.
The buyer made a fair offer and Dad said, "I also have this pistol which I really don't need any longer", and showed him the Trooper.
At the time I didn't interfere or object, so that was the last I saw of it.
Several weeks ago I made my periodic visit to a friend's shop, who generously let's me rummage around in his big, walk in gun vault.
You never know what you're going to find, and I saw the Tyler T on a revolver in a holster.
When I withdrew it and inspected it I saw "WEW" lightly engraved on the ride side of the frame.
Recognized it immediately at Dad's old Trooper.
Decades ago many gun owners weren't worried about collectability and never considered selling their guns so they'd use an "electric pencil" to mark them with initials, social security number or DL number.
The shop owner set it aside for me until I came back to pay him.
He sold it to me for what he'd paid for it which is a few hundred back of its current value.
Not a Python, not highly valuable, but most of you understand that market value is not the only measure that matters.
I plan to shoot some matches with it this spring.