English: GWR 'STARFISH' 10 ton steel, fitted, ballast wagon No.30500, Diagram P.20, Lot 1433, built by GWR (Swindon) in 1942. TOPS code ZAO. At Toddington, Gloucestershire & Warwickshire Railway, 28 September 2013. Swindon built 150 in 1942. They were a development of the 201 (incl. 1 sand wagon) Diagram P18's of 1939 which in turn were an updated Diagram P15, 391 (inc. 11 sand wagons) being built in 1936.
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