197: Physical Demonstration Model Of An Accord Siren : Lot 197

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Lot 197

197: Physical Demonstration Model Of An Accord Siren

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Description

Akkord-Sirene nach "Cagniard de la Tour", um 1900 Physikalisches Demonstrationsmodell, Hersteller: "Max Kohl, Chemnitz", mit Zählwerk und Vorrichtung zum Öffnen und Schließen der Ventile, 4 Lochreihen im Akkord gestimmt, in Messing auf Holzsockel, Höhe 32 cm.
English: Physical Demonstration Model of an Accord Siren after the principle invention of "Gagniard de la Tour", c. 1900. Manufacturer "Max Kohl, Chemnitz", Germany, consists of a rotating disc with 4 rowes of holes, 4 valves, made in brass on wooden base, 12 1/2 in. high.