1992 Donruss Diamond Kings Super Jumbo Randy Johnson RARE 5X7 test issue

Rare 1992 Donruss Diamond Kings Super Jumbo 5 x 7 card. RANDY JOHNSON DK-22. Extremely limited print run; never sold to the public.
There are believed to be just 10-20 of each Jumbo DK card in existence; many of them have print defects (white specks), no specks on this card—the pictured card features UNRIVALED PRINT QUALITY & HIGH GLOSS. See pics for details.
Card securely shipped in a 5 x 7 penny sleeve and 5 x 7 ultra pro top loader.
Thanks for looking!