Digging through a basement closet at an estate sale this past weekend, I found this box of Dixie cups.
Of course, the Star Wars Empire Strikes Back Story Card offer caught my attention.
I began looking (in a concealed manner of course, trying to contain my excitement as best as I could) to see if the cards were still in the box.
These date from 1981. Here are couple scans of the box for your viewing pleasure.
The back features a mail in order form for some additional Star Wars swag.