Celluloid
Hearing Trumpets, c. 1910
Faux-Tortoise shell ear trumpet, marked
"Audios", 2 celluloid telescopic ear trumpets and 2 celluloid
auricles with headband, marked "Clarvox" and "KaWe".
Extremely rare and in top condition!
Estimate: € 1,200/1,800
US$ 1,500/2,250
Reserve: € 990/US$ 1,250
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