My only interest is the gun that jim k said he knows is a fake a 41 colt marked U S N 1902 1892 new navy revolver,he said its fake but offered no explanation as to why,he went off the handle telling me that if i bought it,i wasn't as smart as i think i am,its not my gun I was merely researching the revolvers variations,and military history.
I must have missed that exchange, but I’ll vouch for Jim’s expertise, and admit I’d probably reach the same conclusion.
This is one of those times when a good research book is priceless, but the problem is that because of limited demand they tend to be expensive.
Anyway, the Navy adopted a hand-ejector revolver (the kind where the cylinder swings out to the left for loading and unloading) made by Colt in 1889, and chambered to use the same .38 Long Colt cartridge that they’d had in Colt 1851 Navy cap & ball converted-to-metallic-cartridge revolvers since the early 1870’s. In 1892 the new revolver was revised and upgraded, and was quickly adopted by both the Army and Navy – still using the same .38 Long Colt cartridge.
Colt made an identical revolver for the commercial market that was chambered in either .38 Long Colt, or .41 Long Colt, but the military services only bought the .38 version.
In the case of the revolver you are researching I can see two possibilities.
1. Someone took an original .38 Navy gun, and rebarreled it with a commercial .41 barrel and fitted a .41 cylinder, or bored out the .38 one.
2. Someone took a .41 caliber commercial revolver and stamped the U.S.N. markings on the butt.
There is a very, very slim chance that the Navy, for whatever reason, bought some .41 revolvers, but I highly doubt it though. I’ll look into the matter a bit more when I get the chance.