The value of a sears nitro excel 16 gauge single-shot shotgun can vary widely depending on its condition, rarity and any unique features it may have. Firearms values change overtime and may not have significant collectors value.
1949
$450.00
A Sears model 100.101 20 gauge single shot shotgun is worth between $150 and $400. The actual value depends on the actual condition of the weapon and the interested buyers.
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.
The value of a 12 gauge Sears and Roebuck single shot bolt action model 14 will vary depending on the condition. If the gun is in good condition, it could be worth $150-$200 dollars.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
Nitro King was a Sears Roebuck brand name made by Crescent Arms, 1908-1917.
http://www.e-gunparts.com
High standard
It depends on the the number of barrels, year, model, condition and serial number.
410 is not a gauge. 410ga
It depends on the the number of barrels, year, model, condition and serial number.