This vintage grocery store playset was on sale at Black Diamond in the Schuylkill Mall. It's made out of thick cardboard and includes grocery store shelves with a refrigerator section, complete with doors, at the bottom. It also has a separate piece for the checkout lane and cash register.
It looks like it was made by a company called "Come Play" which I have never heard of. There was no year on it, but from the way it looks and from the fact that it has eggs priced at 58 cents a dozen, I'm guessing it's from the 50's.