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The electric telegraph: was it invented by Professor Wheatston e? (1856)
Cooke, William Fothergill, 1806-1879 · London, Sold by W. H. Smith and Son · leaf 237
w vs^-vtv. ■ ■lA-;. >tjT^nT ^ w.^mw^.^kv ■■■ ^ v^-.^.^-. ■■■■..^■■i.:7 ^ ^.■^^^■1^^^.T^^g^vc Ra^^ -■■T; .■^■L^v■^^^^^M^^^^^.■.<.^l■l.■lM,>.lM^^..^lllHn^lr■c;■^Tm?^ J Drawing IX. MR. COOKES PORTABLE TELEGRAPH FOR RAILWAYS; AIR PRESSURE APPARATUS; DETECTORS, &c.Wheatstone, Charles, Sir, 1802-1875 · Telegraph
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