The Model 12-2 was made from 1962-1976, when it changed to the Model 12-3. S&W can give a more precise date of manufacture.
Sounds to me that you have a smith and Wesson mod-12.These fine .38 special revolvers are selling for 200-300 dollars depending on the overall condition of the gun.
$20
50-500 usd
50-500 uSD
Made in 1953. Model Numbers did not come into use unitl @ 1957. Sounds like you have a Chief Special Airweight. Later numbered as a Model 37.
Informaiton not available in the public domain.
Military and Police
100-450 USD
50-475 usd
the sn you list is outside the range normally associated with the airweight. You must call S&W
You need to find a gunsmith or firearms instructor
50-350 usd