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 F. RUSSELL & CO., MANUFACTURERS OF Telegraph Signal Instruments. For Working the "Block System " on either One, Two, or Three "Wires; " REPEATERS " for showing the position of Signals, Points, or the condition of Signal Lamps at any distance. ELECTRIC BELLS FOB DOMESTIC USE. LIGHTNING CONDUCTORS, AND TELEGRAPH INSTRUMENTS AND STORES OF EVERY DESCRIPTION. Telegraph Lines Erected and Maintained. Works : — Chippenham Mews, HARROW ROAD, LONDON, W. ARTHURHrw. KADCLIFFE, M.I.M.E., M.S.T.E., UiMO^ STREET, BIRMDGHAM, Telegraph Engineer and Contractor. Contracts entered into with Railway Companies for the Erection and Maintenance of Telegraphs, Block Signalling Apparatus, Semaphore Repeaters, and Light Indicators, &c. Telegraph Instrunwnts, Wire, Tools, and Stores of ever// description Supplied. PRIVATE TELEGEAPH LINES ERECTED & MAINTAINED. Collieries fitted with RADCLIFPE'S ELECTRIC SIGNALS, for Engine Planes and Shafts. ESTIMATES FURNISHED FREE OF COST.