Cooke and Wheatstone's four needle telegraph, 1838
1838
Cooke and Wheatstone’s double-needle telegraph, 1838
1838
Cooke and Wheatstone's double needle telegraph, 1844
1844
Cooke and Wheatstone double needle telegraph, 1844
1844
Cooke's train signalling instrument of 1845, Norfolk Railway
1845
Section of first telegraph cable, 1837
1837
Single-needle telegraph by W. F. Cooke, 1840-1860
1840-1860
Vertical galvanometer, 1830-1870
1830-1870
Transmitting keys for Five-needle telegraph, 1837-1846
1837-1846
Sir W. F. Cooke's original electric alarum, 1835-1840
1835-1840
A.B.C. telegraph transmitter, 1835-1845
1835-1845
Cooke and Wheatstone's A.B.C. telegraph receiver, 1839-1840
1839-1840
Cooke and Wheatstone five-needle telegraph
1837
Cooke and Wheatstone 5-needle telegraph, 1837
1837
Cooke and Wheatstone 5-needle telegraph, 1837
1837