459.    $10

Kundo electronic clock, ca. 1960.  An 8.5-inch by 9.5-inch wide brass clock with a glass dome. The metal base is severely tarnished and battery pack is corroded; a replacement battery pack is included, you will have to install. I did not test it or disassemble.  The battery generates a magnetic field that drives the pendulum back and forth; the clock itself and the dial look to be in good working condition.  You can find these clocks all over the internet.  $10-$50.