A collection of 15 issues of the first hacker newsletter, the Youth International Party's (Yippies) phone hacking ("phreaking") newsletter, the Youth International Party Line (later renamed Technological American Party, or TAP). Also includes a hand written sheet on number 5 signalling systems.

Fonds consists of material relating to William Kindree's involvement in the WATFOR 360 group and material relating to the 25th anniversary of WATFOR. Includes Kindree's notes (design and general) and draft documentation, guides and other publications about WATFOR, photocopied conference proceedings and published papers, correspondence, a newsletter, and a photograph of the WATFOR team.