"G.P.O." Portable Magneto Testing Telephone
Linemans portable magneto call telephone, comprising two magnet generator and one piece handset with "Hunningscone Deckert" transmitter. Fitted with polarised 300 ohm call buzzer.
Case made of teak and fitted with a leather carrying strap.
Weight 9.5 lbs.
Cost in 1908 was £5.5.0
Taken from the GEC Telephone Catalogue, K Section, 10th Edition, 1908 and also in the 1916, 1926, 1932 and 1935 catalogues.
Last revised: February 01, 2011