American Internet pioneer (born 1943) and one of 'the fathers of the Internet,' who developed TCP/IP technology and the first commercial email system. Two items: an original felt tip sketch of a "Packet" network showing "Source, Destination, Content" on a white 8 x 5 sheet, signed below by Vint Cerf; and a color glossy 10 x 8 half-length photo of Cerf drawing a diagram on a window, signed in silver ink by Cerf, who adds "a father of the Internet." In overall fine condition. Accompanied by a personal Google business card belonging to Cerf, who has signed the card in black ballpoint.Format: Group Lot