Most likely made before 1968. 10-50 USD or so
$100
Usually went by names not model numbers.
Not without some more information. There were many cheap handguns made in Europe in the early 60's, such as the RG (Rohm) made in Germany. Importation of these was blocked by the 1968 Gun Control Act, and many ceased production. What are the markings on your revolver?
Made in Germany or Italy
probably a Saturday night special type pistol imported from Germany. there were so many of this pistrols made world wide that they have no history or worth.....
Inexpensive revolver made in Germany
Small, inexpensive 22 LR revolver made in Germany.
Single Action revolver made in Germany.
Sauer, Schmidt, Rohm
Unaware of any published data.
The Karl Pfestorf revolver was made in the late 19th century, specifically around the 1870s. It was produced in Germany and is notable for its unique design. The revolver is often associated with the development of early self-loading mechanisms in firearms.
10-40 USD