A former iron ore tippler wagon which ended its life as departmental.
Unfitted wagons (i.e. - wagons without automatic brakes) often carried a grey livery. The oil axle boxes are easy to see in this photo. The white card with an orange stripe was used with withdrawn vehicles - it would say 'ONE JOURNEY ONLY'.
Margam, 1985. Colin Baker (lokfuehrer@ntlworld.com)