THIS COULD BE AN "1895 NAGANT", A RUSSIAN HAND GUN MADE FOR THE RUSSIAN ARMY BETWEEN 1895 AND WELL INTO THE 1930'S. MANY OF THE LATER MODELS HAD THE RUSSIAN STAR STAMPED ON THEM WHILE BEING MADE FOR THE RED ARMY. I FACT IT WAS A 7.62 x 38 CAL. WHICH CAN FIRE THE S & W 32 LONG, 32 H & R MAGNUM AND 32 S & W.
Not in any reference I have seen
The Mark IV was not made in .32 caliber. It was in caliber .38-200 (the 38 S&W). Value is $200 and up, depending on condition. A SIMILAR revolver is made by IOF in India in caliber .32 S&W Long, and sells new (in India) for about $1,300 USD (no competing companies).
POSSIBLY a Spanish revolver (Largo indicates the .32 Long cartridge). These were made by the thousands by multiple, small gunmakers in Spain.
Usually a revolver, although a few rifles were made in that caliber.
No such weapon made by S&W
1910
These were made by the Iver Johnson Company from 1910-1935. Your revolver is from around 1930.
150.00
You need the services of a gunmsith.
Centerfire
A secondary brand of the Iver Johnson company, your US Revolver Company .32 was probably made between 1915 and 1917.
if a police positive, then made about 1915