| More information on Modip Bournemouth |
| Trumpet style hearing aid - PHSL : 348 |
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| An ear trumpet-style hearing aid with a simple tube-shaped body bent 90 degrees and funnel ends, made of thermoformed cellulose nitrate with a tortoiseshell colouring, circa 1930s. |
| Length: 165mm Diameter: 75mm |
| images & text courtesy MODIP |
