There were 52 (STS10600 – 51) of this batch of wagons built in 1982. Initially they worked with BCC Presflos. They were stored in the later 1980s emerging later to be used for Ketton Cement. The 1980s workings are shown. There were just 15 of this batch of cement Presflo built by Fauvet Girel of France in 1985 and hired to Rugby Cement who used them between Halling and Southampton. Unexplained is the number series 74030 – 44 which is well away from any other similar wagons. A 4mm model kit is produced by 51L http://www.51l.co.uk/