Dorset and the Sea
Lanterns with glass side panes were too dangerous to be used by smugglers to signal to ships as the light could also be seen by coast guards. As smuggling became more dangerous smugglers used lanterns with metal sides. The light could only be seen by opening a flap. Eventually a spout was fastened to the lantern to beam the light out to sea (see Spout Lantern).
© Blandford Museum.