This card was printed as a limited run of 115 cards and given to Larry Niven at the 2015 Nebula Awards Banquet, at the Palmer House Hilton, Chicago, IL, June, 2015. No copies exist outside of the selection of 115 copies which are in the possession of Mr. Niven.
The next year, a small number of the Tessler Edition was released at the 2016 Nebula Awards Banquet, May 14, 2016, at the Palmer House Hilton, Chicago. This card can be distinguishe from the prototype card as this blurb has been added to the backside text: "The production of this trading card was made possible through a financial grant generously donated by Eric Tessler, of La Habra, CA." This "Tessler Edition" saw a normal print run of 1,000 copies
COLLECTOR'S ALERT: Collectors have to contact Mr. Niven directly in order to obtain a copy of this limited edition prototype card. The Walter Day Collection does not have any copies.