I'd go to a website where people chat and post messages about guns. Register at such a place, post a photo of your gun and close-ups of the writing or symbols stamped on it, and see what the other gun hobbyists can tell you. From a few seconds worth of Googling, it looks like a lot of "Sears model 20" shotguns were actually made by the High Standard company, similar to the HIgh Std. model 200, and they're nearly identical to the ones sold under the J.C. Higgins name, also called the Model 20.
need a diagram of sears model 66m shotgun for takedown
I believe that your Sears shotgun is a Winchester model 37A shotgun that was made for Sears Roebuck And Co,.
You would have to list the model number of your shotgun,to identify the maker of your sears and roebuck shotgun,in order to get the correct buttstock.
Yes, you can remove the barrel of a model 66 Shotgun!
Stevens model 18D
$125-$175
No sn data available.
model273-510770
50-150 USD
www.e-gunparts.com
http://www.histandard.info/manuals/sears/sashotguns/index.html http://www.histandard.info/PDF/Sears%20Shotguns.pdf
savage