Suhl? Single Shot Blank
Caliber: 22 blank
These guns were possibly designed as kids toys. The Folsom catalog of the early 1900 advertised similar for 85c. This one was beleived to be a pinfire but turned out to be this blank fire thing. The top plate spins, a round is put in pointing down. The plate is turned across and pull the trigger. There are not many references to these gun The only reference I can find is a Cornells catelog.
On the side is Stamped FOREIGN with FR on the frame under the Pistol grip Presumably France.