Open your revolvers cylinder. Look at the forward hing of the cylinder under the barrel. The numbers you see under the barrel at the hing is your model number. Examples would be 642, 638, 442 ect. Sometimes there is a dash such as 642-3 or 638-3 but the first 3 numbers are the ones that matter the most.
Could be the Chief's Special Airweight (standard 5-shot .38 Special with exposed hammer)or Bodyguard Airweight (same gun with humpback hammer shroud).
45 years old
Mid 1960's.
69-70
100-500 USD
My serial # is near yours and I purchased it new in 1968.
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.
1982
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.
100-450 USD
the sn you list is outside the range normally associated with the airweight. You must call S&W
50-350 usd
You need to find a gunsmith or firearms instructor