Stevens
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.
Built for Sears by Savage, similar to their Model 58. Value $75-$100 in typical condition sales@countrygunsmith.net
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
The Sears Ranger 105-20 16 gauge shotgun came out in the 1930s. The Sears Ranger shotgun has a 26-inch barrel.
Sears Roebuck co.
The Sears 16 gauge model 101.40B shotgun was manufactured between 1955 and 1968. This model was produced by the Stevens division of the Savage Arms Company and was sold under the Sears brand. It is a bolt-action shotgun, which was popular during that time for small game hunting.
Depends on model and condition. Typically $100-$150.
No age records, most likely a Mossberg shotgun, values $50-$75.
http://www.histandard.info/manuals/sears/bashotguns/index.html
The JC Higgins 583.16 is a bolt-action 12ga shotgun made for Sears by High Standard in 1948/1949.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
about $100