I've got 3....
Two have the Aristocrat "Bill Davis" rib, with the tri-set FRONT sight. One has an old "Mascot" rib. It was done by Travis Strahan of Ringgold, GA. Had a Shilen barrel at one time, been replaced by me twice....... Not used anymore except as a parts-gun. Has a radicle double-action conversion to a very-short stroke. Actions on all mine are like "oiled glass"......... Especially my primary gun. But, careful working/stoning and over 500,000rds, and countless dryfiring will do that......................
Your's is a Weigand "conversion". I'm not sure if he still does those. He stamped his name on the ribs... They're older Aristocrat sight ribs.
I've seen that gun at some larger matches in past years, hence I've shot against it. Can't remember the shooters name. I remember the guns better than I do the shooters.............
The barrel seems to be a Clark, judging by the machining at the frame/bbl juncture. That would mean that it's probably from a Douglas blank. If it has 6 conventional grooves, it's from a Douglas blank, if "micro-groove", 11 or 12groove, it's from a Shilen Blank. Most are one or the other. No real "advantage", just the way they are......... Some of the more expensive guns wore the Shilen's, but don't seem any more accurate than the Douglas blanks. The difference is in the fitting, cutting, drilling by the gunsmith doing the conversion.
At least your's is by a "recognized" gunsmith.... Makes it worth a "little" more, providing it's original to the conversion. Mine have 13+ gunsmith pedigree's.....or something like that...... I shoot mine,,,,,A LOT.....Definitely shooters, not lookers or collectables.....In good tune, it should do 1.5" @ 50yds for 6-shots, with a good bullet (148gr wadcutter over 2.7gr Bullseye, 2,9gr Win231, or ~2.6gr Titegroup, and FEDERAL #100 primer. You'll be lucky if it will bust anything else except maybe a Winchester small pistol primer....) I prefer the Precision Delta 148gr with "black" lube. Not crazy about the "match" lube....... I strip and re-lube mine anyhow, so it dosen't really matter........Zero's are "ok"; but I usually have to resize them after re-lubing to get "X's" out of them....