HOSKIÆR (HOSKIER), V.
Description of Sir Charles Wheatstone's Automatic Instrument.
Copenhagen, August 1874. 4to. Contemp. hcloth. 24 pp. in zinkography and 3 folded plates.
Scarce Danish description of Wheatstone's automatic transmitter (telegrapy) with 3 folded plates.
Order-nr.: 52241
DKK 500,00