Dated 1858-1867. From Scientific apparatus, musical instruments and telegraph equipment, [1834-1875].

Automatic telegraph printing receiver devised by Wheatstone.  Impulses of current from the sender cause the electromagnet to operate two brass wire armatures.  Ink is pushed by the armatures from a brass tray through two small holes creating dots on paper tape fed underneath.  The mechanism is mounted on a wooden base, one armature missing.