Vintage Rolls-Royce aircraft cockpit clock manufactured by Smiths Motor Accessories Ltd., England. Black dial with luminous numerals and hands, bearing the Rolls-Royce “RR” logo and marked “Smiths” and “Made in England”. Mechanical manual-winding clock, as typical for aviation instruments of the period. The luminous material on the hands and numerals is consistent with radium paint, commonly used on aircraft instruments from the era (not tested). Approximate dimensions: diameter 6,5 cm, depth 6.5 cm. The clock shows wear and patina consistent with age. Not tested for functionality and sold as found. A rare and collectible Rolls-Royce aviation instrument from the 1930s–1940s, suitable for collectors of aircraft memorabilia and vintage horology.