➀ The world's largest moving coil meter, about 17 feet square, will be on display at the Tenth Electrical Engineers Exhibition. ➁ The meter scale is over 20 feet long and will display the total electrical load connected during the exhibition. ➂ The meter movement weighs over 3 cwt, with about a tenth being magnet. ➃ Nalder Bros. and Thompson Ltd. designed and constructed the movement and dial, and a special current transformer will be used.