The copy on the Ripley's Believe It or Not! tomato seed packet reads:
"Delicious Tomato Variety. World Record Tomato. Grow 2LB...3LB...And even larger with this world record variety! This astonishing tomato variety is a record breaker in Europe and America! It consistently produces huge tomatoes with solid centers! It has an excellent flavor too! great for ally your salads and sandwiches!"
The box on the upper right-hand corner reads:
"A 7lb. 12 oz. tomato was grown by Gordon Graham of Edmond, OK in 1986, setting a new World Record."
Mr.Graham is deceased and I believe his "Delicious" tomato variety still holds the World Record.
The back of the seed packet doesn't contain sowing or growing information, but it appears there is more information on the inside of the seed packet. The outside of the seed packet doesn't list who grew or packaged the seeds. This thread on GardenWeb seems to indicate Ripley's also had a giant sunflower variety they sold, but I've not been able to find pictures of those seed packets on the internet. The conversation at that thread points to the Page's Seeds being the source of at least the sunflower discussed.
Seed packet given to met by SnarkyVegan.com