TTGS2 Ground Position Shunt Signal White/YellowTrue 1: 76 scale ground signals which are easy to place on the railway are illuminated within minutes. Although these versions are described as kits, only the plastic head front and back cover has to be glued onto the light unit which is already prewired to large terminals under the baseboard. Unlike some ground signals on the market, these are true 1: 76 OO scale which have been scaled, designed and tooled in the UK along with a special mounting cap