The Sears Roebuck Model 20 12 gauge shotgun, serial number 5832006 is valued at $200 in very good condition. It good condition, it is valued at $125.
Hopkins and Allen arms co. 12ga serial #5832006
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
1945 built by Harrington and Richardson for High Standard who sold them to Sears and Roebuck
http://www.histandard.info/manuals/sears/pashotguns/index.html
choke of sears model 20 12 gage plain barrel shotgun has 3 stars on barrel
Try egunparts.
Marlin High Standard made the Model 75 20 ga semi-auto shotgun for Sears http://www.histandard.info/PDF/Sears%20Shotguns.pdf
I bought a sears 684 shotgun (12 gauge) at sears around 1979 , for $ 99
http://www.histandard.info/manuals/sears/pashotguns/index.html
None
$125-$175