ASTROPHONE. (P.O. Reg No 410)

Deluxe Model.

SOW ME YOUR LIICENCE  at this time radios were under strict license supervision of the Post Master General. Owners were expected to have a licence for every location and every set. Discreetly enclosed in what looked like the box usually expected to contain one or two detachable starched shirt collars. and the metal studs used to attach the collar after dressing in the shirt. Discretion or was it concealment? when the licence should have been related to a Fixed Residential address. This set could, at a push, be made adaptable for use from an upstairs location in a rooming house. With an even bigger push it might just receive enough signal from the strongest local stations to work with the Baby Brown trumpet speaker shown here.

Look in another article to see how Mechanical Amplification now used in your mobile phone had its first common usage.