Browse Items (1 total) Contributor is exactly "Perl, Martin L., 1927-2014 Richter, Burton, 1931-2018 " Browse All Search Items Sort by: Title Creator Date Added 2005-007 Slide Rules Three slide rules with cases, and one slide rule invoice. Aristo-HyperboLog Nr. 0971 Made in Germany DBGM (with two-piece, hard plastic case) Rule is 13 1/4 inches long. Keuffel & Esser Co. Invoice SF 13334 dated 7/17/62 for 4081-5S Rule for $55.55… Featured Item 2000-072 World Wide Web at SLAC, 1991-2000 (Special Collection) Papers, presentations, correspondence, etc. relating to the creation of SLAC's World Wide Web site, the first WWW site in the US. Includes SLAC…