B604 4 Light Signal Red/Green/2 X Yellow Standard Square Head Brand_Atlas County Durham

County Durham

Can you spot the wild Zebra

The models also come with an accessory pack

Come along on a safari adventure

Glowing fire light effect

B604 4 Light Signal Red/Green/2 X Yellow Standard Square Head Brand_Atlas County Durham4 light signal red green 2yellow standard square head This 4 aspect signal is placed at the side of the track. A red light indicates stop, a double yellow light indicates caution the next signal is yellow and at caution, a single yellow light indicates caution the next light is red and Green indicates permission to proceed or route clear. . It is suitable for any layout based from around 1970 onwards, when this style of signal head came into use.