I believe that your Sears shotgun is a Winchester model 37A shotgun that was made for Sears Roebuck And Co,.
Sold by Sears Roebuck. Probably manufactured by Stevens.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
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.
about $100
need a diagram of sears model 66m shotgun for takedown
The Sears Roebuck Model 20 12 gauge shotgun, serial number 5832006 is valued at $200 in very good condition. It good condition, it is valued at $125.
about $100
You will need to find out who made it first.
Try e-gunparts.com
The Sears and Roebuck Ted Williams shotgun retails for about 250 dollars in excellent condition. This gun can be purchased for less than 150 dollars in used condition.
value of a jc higgins 101-40 shotgun