I have that exact same gun in unfired condition. At least I think its unfired. Under the loading lever it has ASM made in Italy on it. So that would be Army San Marco as the manufacturer.
It is possible that Ratshooter has an ASM revolver with a MOFRA cylinder installed.
I have put a small bid on it but won't go too far.
Sorry Ratshooter, I took your first post to mean your revolver had the same markings as shown in the OP.
Porter Rockwell would like your gun. https://templehousegallery.com/mormon-arms-armory/porter-rockwell-sawn-pistol
Too bad that site shows a cast zinc non-firing "replica" of a Colt 1849 Pocket Rammerless.
I have a similar brass frame Remington that I turned into a snub nose with something akin to a birdshead grip a few years ago.
...How did you attach the front sight? It looks soldered on. Did you cut a groove in the barrel? Do you have a gizmo to help reload the cylinder since you removed the loading lever?...
Gizmo is probably a more accurate description than loading stand.
MOFRA (de Mainardi Officina Fabrica Replica Armi) was A. Mainardi's logo on a few Paterson replicas imported by Replica Arms of Marietta, Ohio and later by Navy Arms. A. Mainardi then partnered with his brother to form Euromanufacture (as seen on many reproduction molds and flasks) and they used the double interlocking diamonds logo on the identical Patersons and their other revolvers until they were bought out by Palmetto around 1980. I have several Richland Arms imported ASM's so they must have gotten stock from both manufacturers. You see lots of Richland Arms shotguns around as well. I think they were big in the upper Midwest.I believe that double diamond logo belongs to MOFRA di Mainardi, aka, Euromanufacture (not Euroarms), that later became Palmetto.