Re: German .22 Revolver
Interesting problem; I can find no reference to your revolver, yet I have seen and shot several like it. Like the colt SAA,in style, it has a captive firing pin, in the frame, rather than on the hammer, in the Colt fashion, and may have a 'safety' incorporated into the cyl base pin (push-pull) as well; this info all from memory, not reference.
Having owned quite a number of arms from J. P. Sauer& Sons, I would tell you that it is above average in engineering, sight unseen, and that it will support, in good or better condition, a price of at least $150.
Sauer is an 'old line' german arms firm, and builds nothing but quality arms!
Don't start no s**t and there won't be none, Terry