I have one of the AyA guns that does say Sears and Roebuck. It is sort of a double trigger Matador. It is my favorite modern "go to" double, that I don't have to worry about what shells go in it, or what the weather is like.
I think all of the Stevens and Hunter Fulton were marked Ranger.
These are the only post WWII doubles I can think of that Sears sold?
I re-read your question and saw that I missed the word "vintage".
The only ones I know of are the Meriden/Aubrey guns, and the L.C. Smith made Gladiator hammerguns, none of which said Sears on them.

Last edited by Bret Adams; 01/23/14 12:48 AM.