That disc is not a Pro D Cyclone. It is a Cyclone in Cyclone Plastic, a gourmet plastic blend used for golf discs, which today would be called ESP or Star or some other fancy name.
For the 1994 World Championships I made and peddled sets of Cyclones, commemorating the tournament . Each set had three discs, one Black, one Green and one Glow. Each set was hand numbered (1 through 100) and had a double hotstamp and Lizard artwork. The artwork was done by my wife, Kitten. Set number 1 was donated to the Disc Golf Hall of Fame.
The hardest part of the project was getting the Lizard to pose on top of a spinning disc so the portrait could be painted. He kept on getting dizzy and falling off. Finally, in the interest of art, we glued him on.
The disc in your photograph is not numbered so it was probably considered to be a misprint.
Dang. Well that's really cool about the "cyclone plastic" part. Well... is it any more valuable other than the fact that I love DISCRAFT and I love CYCLONES and I love The People's Champion, Mark Ellis?
Back in the day, a lot of people called the Cyclone plastic "Texas plastic," maybe because of the southwest desert motif on the stock hotstamp or maybe because the Cyclone became very popular in Texas for its durability under tough Texas conditions. My Texas plastic Cyclones were almost as durable as ESP, just as grippy, and flexible like FLX.