50-100 USD
No age records, most likely a Mossberg shotgun, values $50-$75.
AFAIK they never made a bolt action shotgun
Savage/Stevens.
No published sn data.
The value of a 410 Mossberg Model 183T bolt action shotgun is between $150 and $300. The overall condition of the shotgun plays a large part in its value.
Proofhouse.com has a store brand chart that might help.
value of 1968 20 gauge bolt action westerfield
50-100
Ranger 101.2 was sold by Sears and made by Savage (called the Savage 238). The dates are unclear, but some report they were made from 1935 to 1945 (others says longer for the Ranger). A good bolt action shotgun, fed by a magazine. Simple, reliable, well built shotgun.
Sears Roebuck co.
50-100 or so
You should find the bolt in the ads located in shotgun news newspaper.