The revolver was known as the Rohm- also as the RG (for Rhinemetal Gemeinschaft) These were pretty much a product of the early 1960s. When the 1968 Gun Control Act was implemented in the US, most were banned for importation. Although you did not ask, please be very careful in shooting these. Many of these were very low dollar guns of very indifferent quality, and may become unsafe to fire.
Inexpensive, probably built pre-68
10-40 USD
If the revolver is an RG or Rohm, it is worth about $25-50. These were low cost, low quality firearms, and frequenly had frames made of metals other than steel.
No published sn data in the US that I know of.
The value of a German made 22 caliber revolver would actually be dependent upon a number of factors. Some of those factors would include the age and condition of the revolver.
It is a cheap German-made revolver of uncertain quality.
$100
Unaware of any published data.
25-65 US dollars
No published sn data.
Most likely made before 1968. 10-50 USD or so
50 USD topscan you tell me anything about the value of the gun at all?