The TRIANG HORNBY R51 PANNIER TANK COPPER FUNNEL CAP is a vintage spare part designed for Hornby model railways in OO gauge. Made from plastic, this gold-coloured accessory is compatible with the Hornby brand and is designed for analogue control systems. The 1:76.2 scale funnel cap adds a realistic touch to the Pannier tank model, perfect for collectors and enthusiasts of model railways and trains. With its retro design and compatibility with classic Hornby products, this item is a valuable addition to any railway layout.