![](https://icom.museum/wp-content/uploads/2018/04/39-INS_Modelo_transmision-150x0-c-default.jpg)
Telegraph transmission model, ca. 1865, 19.5 x 22 x 5.7 cm.
Instruments and eqipment
Material:Metals |Type:Tools/Instruments |Countries:Colombia
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Instruments and eqipment
Material:Metals |Type:Tools/Instruments |Countries:Colombia