Mounted on a wall in Mr. Miller’s classroom is a demonstration slide rule built in the 1950-51 school year by students in Mr. Marchman’s trigonometry class at Gulf High School. A slide rule, which normally fits in your pocket, is a mechanical calculator used before electronic calculators were invented. On June 10, Walt Casson, who did the lettering on the slide rule and hadn’t seen it in about 62 years, visited GHS and saw the device. It was discovered a few years ago in storage at the old Elfers school. In the bottom photo, taken for the 1951 GHS yearbook, Bobby McAlpine (now deceased), Walt, and Vic Schuck are holding the slide rule.