You haven't given us enough information to ID your revolver. If you could post pics, we could get it exactly. If it is a Smith, it's probably safe to fire. But a lot of Spanish copies of S&W revolvers were imported into the US. If it's one of those, I wouldn't shoot it.
The 32-20 cartridge was once sold as a good choice for deer and small game. It has considerably less punch than a 38 Special, so it's too light for deer, but it would be a fine small-game round. It may be perfect for turkeys. You can run it up a bit with handloads, but hot 32-20 loads are known for having an earsplittingly loud crack.
Okie John