mail, telephone, Alibiphon, first answering machine, detail with operating equipment, invented by Willy Mueller, at the bottom side is a metal plate mounted with the inscription "Willy Mueller & Co. KG, special magnet phone device for telephone, dictation and advertising, Munich, Sophienstr. 2, made by Friedr. Merk Telefonbau , Munich", no recording of leaving messages possible, unit cost at that time circa the 400 DM, bakelite case, Germany, circa 1958, Additional-Rights-Clearences-Not Available

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
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