This is an Open Top Navy Revolver in .38 special, with a nickel finish. This is manufactured by Uberti and imported/sold by Taylor's & Co. Barrel length is 5.5 inches.
I bought this to accompany my 7.5 inch version but only took it to the range once so I'm selling it off. It is like new, with original box and papers.
More info can be found on the Taylor's & Co. website here: https://www.taylorsfirearms.com/hand-guns/cartridge-revolvers/1872-open-top-early-model-conversion-revolver/open-top-revolver-1851-navy-nickel-finish.html