Comprises: Note, in Lord Kelvin's hand, of the 'ether' or wireless message he sent in Jun 1898 [the first ever paid wireless telegram] from the Royal Needles Hotel for the information of James Blyth, a colleague in Glasgow, with a further note (on a Post Office Telegraphs form) instructing that the same message be sent to Lord Rayleigh at Downing Street and Preece at the GPO, 1898 Draft...