A Hornby Dublo double arm , hand operated signal in tidy working order.
Hornby Dublo Double Arm Electrically Operated Signals
Hornby Dublo Double Arm Electrically Operated Signal - Working
Hornby Dublo Double Arm Upper Quadrant Distant Signal Electrically Operated ED3
Hornby Dublo Double Arm Home Junction Signal - Electrically Operated - ED3
Hornby Dublo Double arm signals collection ..*
