Posted By:
D. C. MarkelOK, here's something that's currently up for auction on the Toppsvault:
DESCRIPTION: 1977 Topps Baseball Card 4-Color Film Positive! Geo. Brett (RB). Direct from the legendary Topps Vault, this auction features an original 4-color film positive for this player's 1977 Topps Baseball card. Color separation film positives were used in the set's printing process. This auction features the black tone positive. Four different colors: red, blue, black and yellow are used in this process. This rather unique collectible measures the standard 2 1/2" X 3 1/2" and overall, is in excellent condition with only minor surface wear. All Topps Vault auction lots come with a certificate of authenticity. Collectors, please visit our other pop culture and sports auctions on eBay today!
There's tons of cards that have been released in the past several years like this. As mentioned earlier, I've seen '67 Pirates Test Stickers with only one plate color used.