A lot more than $20 if it's "tight and a good shooter!"
Where did you steal it?
I'm not up on these, but I DO seem to remember about 30 years or so ago there was a "resurgence" among SA shooting, but before the current "Cowboy" craze, and a lot of "reasonably" priced SA revolvers in .22lr more or less patterned after the COlt SAA but more like the RUger Bearcat were advertised all over SGN and in the gun mags.
I don't necessarily think there's any "collector's" interest in them, but they are what they are, good fun shooters. I'm sure I've probably seen them at shows before, but never really paid that much attention since I'm not a SA guy (I WOULD like a Blackhawk tho'
) but I'm sure in that condition, a shooter is worth $100-$150...somebody will be along with the Blue Book price soon I'm sure.....