The Hornby O Gauge Single Arm Signal is a vintage model designed for railway enthusiasts. Made of tin and in O gauge scale, this analogue-controlled signal is a perfect addition to any model railway layout. With a nostalgic theme of transportation and representing Era 3 - The Big Four (1923-1947), this ready-to-go pre-built signal from the United Kingdom's renowned brand Hornby is sure to enhance the charm of your collection. Perfect for adding realistic details to your scenery, this signal is a must-have for collectors and hobbyists alike.