An essay on the different modes of communication by signals; containing an history of the progressive improvements in this art, from the first account of beacons to the most approved methods of telegraphic correspondence. By J. Gamble, ...
Gamble, John,1761 or 1762-1811.
London : printed by S. Gosnell, for W. Miller,
1797.
With a half-title and a final errata leaf.
ESTC
England London.