"Testophone " Testophone à quatre cornets en bronze... Lot 9
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"Testophone " Testophone à quatre cornets en bronze et cuivre produisant altérnativement quatres sons différents. Marqué: "Testophone, système Etienne Teste, Breveté S.G.D.G 3829". Poire conforme mais non d'origine. Très bon état, Circa 1910. L: 55 cm.
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