MAGNETO RINGING TELEPHONES
(WITH THREE-MAGNET GENERATORS)
No. U 352
Magneto Wall Telephone, same Instrument as No. U 345 , but mounted on Polished Walnut backboard, with Battery Box for two No. 2 Leclanche Cells.
No. U 352a
Tropical Magneto Set. Similar to U 352, but with Teak Woodwork and finished suitable for tropical climates.
NOTE: The above Instruments are suitable for short or long distances, and may be used as Bridging Sets when not more than four or five Instruments are connected in parallel on one line.
Taken from the Sterling Catalogue No. 11 & 12
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