Springfield
Yes it is
sears roebuck and company
The value of a Sears and Roebuck 12 gauge shotgun model number 281512651 depends on its condition. This gun in excellent condition is valued between 100.00 and 135.00 as of 2014.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
1952 by High Standard for sears& Roebuck
Winchester 1200
$49.95
I believe that your Sears shotgun is a Winchester model 37A shotgun that was made for Sears Roebuck And Co,.
75-200 USD depending on condition.
We have them. gunshop@nctv.com
The Sears Roebuck Model 20 12-gauge shotgun was manufactured by the High Standard Manufacturing Company. Sears sold it under their own brand name, but the shotgun itself is essentially a High Standard design. It is a popular choice among collectors and enthusiasts of vintage firearms.
I have parts for that model. sales@countrygunsmith.net