B604 4 Light Signal Red/Green/2 X Yellow Standard Square Head MK2-Coach comprised a pair of prototype

comprised a pair of prototype units

To make a Figure 8

They were also the last units to run on the Anglesey Central Railway which closed to public traffic in 1964

Twin Smokebox-mounted Lubricators

grab handles

B604 4 Light Signal Red/Green/2 X Yellow Standard Square Head MK2-Coach comprised a pair of prototype4 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.