Long ago, in a galaxy far, far away.....
Congress passed the 1968 Gun Control Act. Among other things, it prohibited the import of REALLY cheap guns- ones that were cheap because they were made of a zinc alloy (aka Pot Metal) instead of steel. Guns like the RG.
Some small American companies decided to jump on the newly emptied band wagon, and make their own cheap, zinc alloy guns. Since they were made in the US, the import ban did not affect them- just cleared out the competition.
Yours is such an example. The frame is alloy, the 2 inch bbl and cylinder are steel. Durability is poor. The maker was (AFAIK) a job lot machine shop type company. Need a 3/4 widget with a 4mm hole bored at the center? Sure- how many you need?
Issue you will face is timing- if the cylinder is not properly aligned with the barrel, bullet will begin "shaving" lead off the side of a fired bullet- and eventually, will not fire, since firing pin is no longer whacking the rim.
Company is long gone, gun not listed in Standard catalog of Firearms. Value very low- $20-$25 range.
What we have here is... failure- to communicate.