Electro-Magnetic Telegraph on the Great Western Railway. Invented by Professor Wheatstone(Electro-magnetic telegraph on the Great Western Railway. Invented by Professor Wheatstone )English School |
€ 109.31
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Undated · engraving
· Picture ID: 452516
london · electro-magnetic · telegraph · great western railway · invention · professor wheatstone · telecommunications · speed · Private Collection / Bridgeman Images · / Look and Learn |
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