It looks like a typical 1920's or 30's Spanish revolver, or possibly a Belgian.
These were extremely cheap, usually very poor quality revolvers made for sale in mostly South America where they were usually passed off as Smith & Wesson guns.
They often had marks on the barrel something like....
This revolver is best with SMITH & WESSON cartridges.
The SMITH & WESSON letters being large with the other words being very small .
In most cases any serial numbers or proof stamps are meaningless and you usually won't find a makers name.
These low quality guns should not be fired due to the poor quality metal and even worse workmanship.
It was common for these guns to blow up the first time they were fired.
There were two Phoenix Arms companies in the world.
Phoenix Arms of Ontario California may not still be in business, but it made a .25 ACP automatic with a 2 7/16 inch barrel. It was made of cast Zamac (zinc) alloy and sold for under $70.
They also made an HP Model .22LR or .25ACP auto using Zamac costing $145.
And they offered an HP Deluxe Range Kit model with longer barrel, retail $224.
These were all very low end .25 automatics using Zamac, which is the same zinc alloy used to make very cheap pistols, pellet guns and starter pistols.
There was a Phoenix Arms Company in Lowell, Massachusetts who imported a 25ACP Belgian made automatic.
Apparently this was a fair quality gun since it cost near $500.
There is no "Fhoenix" gun company listed in any references I have found.
This may have been made in Asia or Europe in any number of countries who often made ultra poor quality guns with names that sounded like an American or European name.
All I can say is that the crude appearance and design indicate it was not made by any formal arms company I've ever seen or heard of and as I said, is a poor quality gun made to sell to the unwary at rock bottom prices.
Again, I strongly recommend you do not try to shoot it, since it will likely not end well for you.
I have meet the same, but in better condition There is FHOENIX text on the top of the frame, but this is not the producer. This is Spanish revolver, made in 8 mm Lebel calibre by Trocaola Aranzabal & Cia, for civil or police using. There are TAC logos on the top of the grips, and on the right side of the frame over the grip. On the left side is the typical spanish Trade mark with crescent. TAC produced also S&W copies in8mm for the French army in WWI.