Tag 'ref = 451'

• 3: ref
• 1: railway:signal:combined:height
• 1: railway:signal:traversable:type
• 1: railway:signal:speed_limit_distant:form
• 1: allotments
• 1: fire_hydrant:position
• 1: emergency
• 1: railway:signal:combined:shortened
• 1: fire_hydrant:type
• 1: railway:signal:combined:form
• 1: operator
• 1: railway:signal:speed_limit_distant
• 1: railway:signal:combined:substitute_signal
• 1: railway:signal:speed_limit_distant:height
• 1: railway:signal:combined
• 1: railway
• 1: fire_hydrant:diameter
• 1: railway:signal:traversable
• 1: railway:signal:combined:deactivated
• 1: railway:signal:combined:states
• 1: railway:signal:direction
• 1: railway:signal:combined:function
• 1: railway:signal:position