Most signed at one event long ago. Walter signed a sticker vs a card.
Gene's Sharpie died mid signing, but completed with another. The item "12 Signed Star Trek The Motion Picture Cards. Roddenberry And Cast Of 11" is in sale since Sunday, January 20, 2019. This item is in the category "Collectibles\Non-Sport Trading Cards\Star Trek Trading Cards\Trading Card Singles".
The seller is "jmsbrwn" and is located in Frazier Park, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, ...