Uberti.
This is actually the second L & R I've owned. Had one ten years ago.
I had lucked out in that one as it was a tack driver, and always was able to disassemble the barrel wedge with just thumb pressure and pull the barrel easily regardless of how much it had been fired. I had a pard lusting after it and in a moment of poverty sold it to him.
Wanted to get another one, so I bought one in 2005 again from Dixie Gun Works. By that time the ones coming out of DGW had the correct half-octagonal, half-round barrel, but for simplicity of production they were using the roll-engraved cylinder of the '51 Colt. The original L & R had a plain cylinder, and the one I owned ten years ago did too. And I was not able to find a plain cylinder as an after market part from VTI.
I worked out a deal with OCB to remove the scene on the cylinder, strip the modern blue job off, clean up the metal a bit, re-blue with a finish closer to a period finish that would have 'aged' 10-15 years with use after the War, polish up the re-blue then strip and refinish the grips a darker walnut.
Interestingly, Cimarron has since offered the Leech & Rigdon in their 'antiqued' finish, although from what I have seen it is closer to bare metal without the charcoal blue undertones that Bill did. (The standard blue L & R Cimarron shows online has the '51 Colt roll-engraved cylinder too. Hard to tell from the pics of their "Original"-finish L & R what style the cylinder is.)
With use over the years the finish has grayed down a bit. I expect the engraved "LEECH & RIGDON" will darken over time and have more contrast with the surface patina.
(Just to mention, the CSN coat was made by James Country Mercantile,
www.jamescountry.com; and the CSN belt and buckle by Hanover Brass,
www.hanoverbrass.com . Highly recommend both.)
RCJ