Dated 1859-1861. From Scientific apparatus, musical instruments and telegraph equipment, [1834-1875].
Wheatstone's Universal telegraph receiver developed from the Wheatstone's ABC telegraph originally patented in 1840 with a new patent in 1858, known as a 'coconut' receiver and used in conjunction with the 'communicator'. Consists of an ebony body with a brass and ivory dial mounted on a wooden base. Dial inscribed ‘Universal Private Telegraph Company, Incorporated 1861. C. Wheatstone invt. 1840, new patent 1858’.