And that is ALL the information available. I just spent an hour running searches, and the only thing I could find was an old post at a shopping board on a guy looking for a magazine and a place selling them.
In a day or two I'll be able to put up some personal findings; after
About it being made for Sears, this was done with a LOT of firearms over time. There were shotguns and rifles of all types sold under the Sears, Roebuck name which were nothing more than a different name & model number stamped on someone else's product. I remember seeing what appeared to be a standard Winchester Model 94 with the Sears name & model on it when I was a kid.