BR built 8590 unfitted iron ore tipplers. Some of these were converted to vacuum brake later, joining those built new with vacuum brake. As well as Iron ore, they were used for Sand and Chalk. Later some carried ingot moulds and their high capacity meant, during the 1980s that they were popular with civil engineers as spoil carriers. (With acknowledgement to Paul Bartlett, whose superb wagon website holds a huge archive of wagon images, ideal for creating realistically weathered wagons!https://paulbartlett.zenfolio.com/).