Unaware of any published data.
$100
No published data.
10-40 USD
No published sn data.
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.
Most likely made before 1968. 10-50 USD or so
Usually went by names not model numbers.
The .22 Short, was developed for Smith and Wesson's first revolver , in 1857.
Inexpensive, probably built pre-68
Late 80's early 90s
About 1912. Those were made by Iver Johnson for 23 years starting in 1910.
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?