It is a Stevens Model 250A, made by them for Sears, using the Sears J.C. Higgins trade name.
No sn data available.
sears roebuck and company
1952 by High Standard for sears& Roebuck
JC Higgins Model 20 shotguns sell from $100-$175. firstname.lastname@example.org
J.C. Higgins company
Your shot gun was made By Harrington & Richardson For J C Higgins -Sears / High standard. in 1945 http://www.histandard.info/PDF/Sears%20Shotguns.pdf
yes 583 1 is the first J C Higgins shotgun model and yes it is 12 gauge .It was manufactured by Harrington & Richardson for Sears in 1945
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.
I could be wrong, but I believe it was Sears/Roebuck.