The Hornby X1072/3 X515/6 Connrods and Valve Gear Set is a vintage accessory designed for the R066 Duchess of Abercorn model train. Manufactured in the United Kingdom in 1980, this press steel set is compatible with the Duchess Class in 1:76 scale. The valve gear set, suitable for analogue control systems, is a needed part for collectors and enthusiasts looking to restore or customise their Hornby trains. This ready-to-go/pre-built set features a silver colour and is a genuine Hornby product, perfect for those interested in Era 3 - The Big Four (1923-1947) vintage railway models.