12 back Princess Leia Cromalin: This is a 12 back Princess Leia Cromalin work print, most often used in the color management phase of packaging development. Often, changes would be written in various places on the card. This particular card has a circle around a product number leading to a "new #" note for the next run.  Cromalins are more desirable than proof cards due to both their rarity and the vibrant nature of the print, which really emphasizes the artistic value of vintage Kenner packaging.