50-500 usd
100-300 USD depending on condition
No way to answer without detailed information on all markings and features.
Without a description the range is from 1-500 USD.
The model 38 air weight had a steel barrel,but a light weight alloy frame.Smith and Wesson does state what the alloy is comprised of.
50-500 usd
50-1000 USD or more depending on specifics
50-399 USD or so
No serial number provided; no way to answer.
Your Smith and Wesson model 37 chiefs special airweight will bring 450 dollars in new unfired condition.It may bring more if the buyer is really motivated.
air soft pellets
Need caliber, finish, condition, box, papers, accessories, etc..
Serial number not in the range of the 37 published data. You will have to call S&W