Ireland. Congested Districts Board & Marconi, G. (1911). Copy letter from J.R. O'Brien, Congested Districts Board, to Guglielmo Marconi, granting permission for Marconi to erect temporary poles for his experiment.
MLA CitationIreland. Congested Districts Board and Guglielmo Marconi. Copy Letter from J.R. O'Brien, Congested Districts Board, to Guglielmo Marconi, Granting Permission for Marconi to Erect Temporary Poles for His Experiment. 1911.
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