Show us a “ only one that’s known of” card

[whiteymet]

I know an unopened box of 1963 Jello with a Brooks Robinson card on the back recently sold for BIG $$$$. While that may be the only Brooks Robinson known unopened of all the thousands of boxes that were produced, here is a true 1 of 1.

Shown for your viewing pleasure is original Jello camera ready production art for the Jello baseball set with the Brooks Robinson and 4 other HOFer's Ashburn, Ford, Cepeda and Mathews and a similar portfolio with Killebrew, Marichal, Roberts, Frank Robinson and Aparicio I have similar ones for Post Baseball as well

Wording from an old auction listing says:

Phenomenal one-of-a-kind copy art poster board lay-outs used in the production of the 1963 JELL-O gelatin baseball card promotion. Each illustration board is impeccably preserved in the original hard cover folio and identifies the gelatin package(s) on which each card is to appear, while the paste-up sheets reflect General Foods art department proofing notations. Each illustration board and individual card lay-out is oversized in comparison to standard box panel and card dimensions, measuring approximately 5" X 3?."

Unlike the 1963 Post cereal poster board lay-outs, the JELL-O mock-ups are aligned in 2 columns of 4 cards (total of 6 for the 3 ounce packages, and 3 columns of 3 cards (total of 9) for the 6 ounce packages. These illustration boards were then sent to rotogravure printers to produce the plates that ultimately yielded the individual JELL-O packages on the grocer's shelf. Original Kodachrome prints of players appearing in the set, which feature the photography of Art Shay. Advanced collectors will also marvel at the photograph variations attendant to cropping of the prints and placement of the photos within the overlay sheets.