Cobalt glass billet (poured glass); "The Impossible Clock" - socalled because it is made out of 1" thick glass which is beyond the glass worker's normal working range.

A sheet of antique blue mirror, small stand-up Nixie tubes.

Custom beveled glass housing with eight RCA numerotron readouts.

Antique blue glass mirror base. Neon "British flag" displays.

Clock by Cozmodog. Glass plate with stand-up Nixies. Displays day and date (microcontroller controlled).

Custom-made bevelled glass sporting stand-up RCA numeratrons which are white-light filament tubes. Sub-seconds in a smaller size. Weighs a ton and will break easily.

Free-standing clock in a glass tube with a marble base. Features round nixies and two power supplies.