Hornby Dublo D1 Girder Bridge in orange and green. Scarce item!
OO scale.
This lovely example is in very near-mint condition, with a few minor chips to the paint and light surface rust to the bottom of the bridge. For best idea see the pics.
The box is original, complete and a little worn around the corners and along the edges, still a very good box.
From a small childhood collection of vintage Hornby Dublo.