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.
$75 to $125, depending on condition.
The JC Higgins 12 gauge pump action shotgun, model 20-1264 583.55 is valued at $175 in excellent condition. In fair condition, it is valued at $90.
The JC Higgins Model 20 was a slide-action shotgun made for Sears by High Standard. Value, depending on condition, can range from $100-$225.
Without a model number and the condition of the gun, impossible to answer.
Which model are you asking about?
JC Higgins Model 20 Shotgun does not have a serial number. Guns were not required to have a serial number before 1938
When was the J.C. Higgins Model 101.0 12Gauge Shotgun Made