BR Mk1 BSO (Open Brake Second) No. 9267 (later numbers = E9267; NYMR 15; current number = E9267).
Built by BR Doncaster in 1956 to Diagram 183, Lot 30170.
Preserved in 1973 by the North Yorkshire Moors Railway. Main line certified (for Whitby operation); delivered to Midsomer Norton in May 2017 on a three year loan from NYMR. This is historically significant because this is the last remaining Mk1 carriage in the consist of the last special excursion train that ran over the S&D on 6th March 1966.