Ear trumpet with grille and extendable ear piece. Ear trumpets were used to aid those with difficulties in hearing. Sound waves enter the wide 'sound collector' and become amplified as they pass along the narrow tube and into the earpiece. The tip of the earpiece is placed in the ear of the user,amplification of the sound makes it easier to hear. This piece is made from nickel plated brass and dates from around 1900,France | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 5185 px × 3371 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |