Artifact Details Title 25th Anniversery UNIX playing cards Catalog Number 102735135 Type Physical object Description Object is pack of playing cards where the cards have a photograph of everyone involved in the UNIX development: Dennis Ritchie, Ken Thompson, Bill Joy, etc. Date 1994 Manufacturer Usenix Association Dimensions overall: 3/4 in x 2 1/2 in x 3 3/4 in Category Ephemera/other