Great Western Railway mahogany signalbox indicator with flag PAWL OUT PAWL IN brass plated with LEVER No7 and paper label THE WORKING OF THIS INDICATOR MUST BE OBSERVED BOTH BY DAY AND BY NIGHT. Ex Sharpness Swing Bridge as indicated by the Signalbox diagram in this auction. In very good ex railway condition with paint flaking on the green zinc face, flag moves freely, stands 9.5in tall. A unique and desirable instrument.