This British stamp celebrates the 1938 Triumph Speed Twin, a landmark in motorcycle engineering. Designed by Edward Turner, the Speed Twin introduced the world’s first practical parallel-twin engine, combining power, balance, and style that set new standards for the industry. Its sleek red frame and 500cc engine made it an instant icon of pre-war motorcycling. Issued by the Royal Mail, this 47p stamp belongs to a series honoring British motoring innovations. A true tribute to the spirit of mechanical craftsmanship and timeless design.