Wall telephone for magneto call small pattern in polished walnut case; comprising hand-combination, 'watch'
receiver with two conductor cord, automatic switch-hook, induction coil, alternating current bell with 300 ohms resistance, strong magneto with 2 magnets, point lightning protector with short
circuiting plug and terminals for ringing through about 12000 ohms.
Net weight about 2.8 kgs.
See also Telephone No. 4052.
Taken from the Siemens & Halske Telephone Catalogue