Yes, that's an old-skool 8 inch diskette. The really shocking thing: It was in a SHRINK-WRAPPED box of 10. Apparently he worked at a campus area bookstore that kept them for way too long (well into the 1990's!) in the hopes of eventually selling them. Their conservative inventory practices are my good fortune!
and speaking of fortunes, what the hell does this cookie message mean?
"Alas! The onion you are eating is someone else's water lily."
Sounds more like someone's been eating tiny squares of paper.