I believe that your Sears shotgun is a Winchester model 37A shotgun that was made for Sears Roebuck And Co,.
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.
75-200 USD depending on condition.
No public sn data available.
It is a High Standard Flite King. Decent gun.
I have parts for that model. firstname.lastname@example.org
The value of the 410 Sears and Roebuck JC Higgins Model 101 shotgun varies greatly with its condition. In excellent condition the gun retails for about 250 dollars or so.
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.