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The Nixie tube ("Numerical Indicator eXperimental") was invented in 1952, and used in equipment displays until the early 70's. They have long been replaced, but I love these classic pieces of electronic history. Although originally they were never used for time telling, today a clock is a great way to admire the Nixies beauty.
Oscilloscope display tubes have been around for even longer, and also make interesting objects for displaying the time.
The following kits utilise a compact microcontroller driven design, and have support for DCF77 which can set the time automatically from the atomic time standard transmitter in Frankfurt, Germany.
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