This card is the same as the Prototype edition except that it has this additional text added on the backside: "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. This card was released at the 2016 Nebula Awards Banquet, May 14, 2016, at the Palmer House Hilton, Chicago.
As stated elsewhere, the earlier prototype card was printed as a limited run of 115 cards and was 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.
COLLECTOR'S ALERT: Collectors have to contact Mr. Niven directly in order to obtain a copy of the limited edition prototype card. The Walter Day Collection does not have any copies.