Mk.III.1 Modelviewer (2004). Illuminated by several white-light LEDs with built-in battery-pack. External LED power-supply (not supplied) activated by built-in on-off switch. Rails can carry current from external power supply via sub-miniature 2-pin connector The bridge can be separated from the colored MDF baseboard which carries a mirror. Length approx. 750 mm.

Mk.III.2 Modelviewer (2005). Neon light illuminated, 230 V. Rails can carry current from external power supply via sub-miniature 2-pin connector. Birch laminated wood, length of track approx. 850 mm.