Original felt tip sketch of a diagram of the "Internet, ca. 11/22/77," demonstrating the gateways, hosts, and stations that connected the "PRNET," the "ARPANET," and the "SATNET," accomplished by Cerf on a blue 11 x 8.5 cardstock sheet, signed below, "Vint Cerf." In fine condition, with a JSA label affixed to the lower right corner. Accompanied by a certificate of authenticity from JSA.
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