GPO Hertz’s Radio Set 1886Original vintage advertising poster for the General Post Office (GPO) Hertzs Radio Set 1886 featuring a great illustration by Eric Fraser (1902 1983) of the German physicist Heinrich Rudolf Hertz (1857 1894) who first conclusively proved the existence of electromagnetic waves, depicted using the radio apparatus he invented to generate and detect radio waves, with a bright star in the sky in the background and the GPO logo and stylised title text
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