Fifteen items signed by internet pioneers, including: two commemorative covers and a photo signed by Vint Cerf, one of 'the fathers of the Internet,' who developed Transmission Control Protocol (TCP) and the Internet Protocol technology and the first commercial e-mail system; a photo, a first day cover, and a business card signed by Bob Kahn, the other 'father of the Internet,' who along with Cerf invented TCP/IP; two small photos, a matted signature, and a business card signed by Leonard Kleinrock, who played an influential role in the development of the ARPANET, the precursor to the Internet; a first day cover and photo signed by Lawrence Roberts, co-creator of ARPANET; a signature and a signed photo of World Wide Web inventor Tim Berners-Lee; and a photo signed by mobile phone inventor Martin Cooper. In fine condition. In overall fine to very fine condition. In overall fine to very fine condition.