Nothing much. Single shot, 20 gauge, and "Sears and Roebuck" on it (it was probably made by Savage) all work against it having a high value. It may be worth $40-$50 to someone.
Up to $125.
Sears Roebuck co.
Depends on model and condition. Typically $100-$150.
It depends on the the number of barrels, year, model, condition and serial number.
410 is not a gauge. 410ga
It is a Stevens 940B. I have the schematic. email@example.com
I bought one when I was in High School in 1947 or 1948
No age records, most likely a Mossberg shotgun, values $50-$75.
A J.C. Higgins Sears Roebuck 16 gauge bolt action shotgun is valued at between $100 and $150 in good condition. A parts gun is worth $30.
Single shot break action shotgun? If so, most likely a Springfield 947. Depending on condition, value is about $75. Well made, reliable shotgun- just not a very pricey one.
The value of a Sears Roebuck 12-gauge 101.100A shotgun is around $100. This depends on the the condition of the firearm.
One of many types made by them
Should be a bolt action Savage/Stevens. Value around $100-$125 in excellent condition. firstname.lastname@example.org
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.