What is the value of a thalco 22 pistol made in Germany?

Thalco was a rebranding of revolvers made by RG. Not to be mean spirited, but the quality of these RG-10 revolvers was about as low as you could find. Current values are in the $25 range if it works. The frames are of zinc alloy, better known as pot metal. They were barred from import into the US after the 1968 Gun Control Act.