Show MEASURES TIME t ais AA J i liKI y aEa ail i 3 v 4 ta 10 does your run erratically ThInk 0 of f the astronomical clock at the lie united states bureau burfus of standards washington the yardstick sy hy which tile accuracy of all types of watches wat clies and clocks the country over are tested ene enclosed i ased in an airtight air tight chamber pendulum working in a partial bacu vacuum aill it Is so regulated electrically tbt hat it never goes wrong but tells tella what Is wrong with other timepieces time pieces |