A Dramline Crossrail Junction.
This is an old section of a “Bridge Rail” dramline crossrail junction for the underground transportation system.
The piece was used in a coalmine or level and laid at the section of rail where it split into two at junctions or partings etc. It has holes for it to be attached to wooden sleepers with dog-nails.
Made of iron. Size 24″ x 15″ x 2″ inches. Weight 27kg.