Two dials test telephone
By Dag S Karlsen, ; posted March 23, 2012; hits 1262
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| Leather case with test telephone. Locally made at the Tel. co. in Oslo 2 wires for connection, one with switchboard jack, and one with 3 clips. 2 Dials. Slow dial measured to 8.5 p.p.s. and one fast at 13.5 p.p.s. |