
Description
Two Telegraph Components and a Switchboard, 20th Century
Comprising a resistance box with bakelite pegs attributed to the Gambrell Bros of London used as a telegraph component and a Central Scientific Co. double Morse key on a mahogany base used to encode text characters as standardized sequences of two different signal durations, called dots and dashes. Plus a Central Scientific switchboard to direct electrical currents
Largest dimensions: H: 3 1/2 W: 20 1/2 x D:L 6 1/2
From the Estate of John A. Davidson, Jr. Proceeds to benefit the APL of Lorain County and the Dittrick Museum.
Comprising a resistance box with bakelite pegs attributed to the Gambrell Bros of London used as a telegraph component and a Central Scientific Co. double Morse key on a mahogany base used to encode text characters as standardized sequences of two different signal durations, called dots and dashes. Plus a Central Scientific switchboard to direct electrical currents
Largest dimensions: H: 3 1/2 W: 20 1/2 x D:L 6 1/2
From the Estate of John A. Davidson, Jr. Proceeds to benefit the APL of Lorain County and the Dittrick Museum.
Condition
Resistance box may be missing one bakelite peg. General dirt and grime commensurate with age and use.
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Two Telegraph Components and a Switchboard
Estimate $100-$200
Current Price (1 bid)
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Feb 25, 2026 10:00 AM ESTCleveland, OH, United States
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