Telegraph instrument; Semaphore signal repeater, stamped underneath 33193; Preece's Patent. Semaphore signal repeater
Signal Repeater; Banner Repeater (repeats position of Stop Signal ahead of which view is obscured); Manufactured by Siemens & General Electric Co. Signal Repeater, Banner Repeater
Fog signal repeater; London & South Western Railway, W R Sykes Patent; made by Interlocking Signal Co Ltd, Railway Signal & Telegraph Engineers Works: London & Glasgow Fog Signal Repeater, London & South Western Railway