I've been promising myself for a long time I would have a go at these wagons. None of the bigger manufacturers seems interested probably because there field of operation is a bit limited. They worked the Anhydrite flow from Long Meg quarry on the S&C down to ICI in Wigan frm the mid 1950's until the early 70's, then a lot were transferred to the Nottingham area for iron ore traffic.   Here are a few pics from the test builds.             I'm making a test batch of 5 at the