$50-$75. There is a safety recall on models 583.13 through 583.22- they are unsafe to fire. Sears will give you a $50 gift card for sending them the bolt to keep.
Sears Roebuck co.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
I believe that your Sears shotgun is a Winchester model 37A shotgun that was made for Sears Roebuck And Co,.
about $100
Depends on model and condition. Typically $100-$150.
about $100
You would have to list the model number of your shotgun,to identify the maker of your sears and roebuck shotgun,in order to get the correct buttstock.
No age records, most likely a Mossberg shotgun, values $50-$75.
1949
$450.00
The 12 gauge long tom 1900 shotgun by Sears and Roebuck is valued at $250 in excellent condition. In fair condition, it is valued at $80.
The Sears Roebuck Model 300 12-gauge shotgun with serial number 273521160 was manufactured in 1964. This shotgun was produced by the High Standard Manufacturing Company for Sears, Roebuck and Co. It is part of a series of firearms sold under the Sears brand during that era.