ear trumpets
diaphragm #393
| style | diaphragm |
| brand | Unknown |
| based in | |
| trademark | |
| made | 1890 |
| retailer | |
| earpiece | vulcanite |
| body | vulcanite |
| horn | vulcanite |
| horn dia | 97 mm |
| length | 377 mm |
| weight | 201 gm |
| size |
|
| grille | none |
| marks | none found |
| ring | no |
| adjustable | screws |
| handed | no |
| rarity | rare |
| build | tooled |
| condition | ok |
| acquired | 2016 |
| seller type | dealer |
| found in | Zwolle |
| country | Netherlands |
| value |
|
| seller note | screwable hearing trumpet in for parts for easy carrying, from about 1900. material is from brown lacquered Vulcanite |
| comment | I have never seen one like this, so a must have ! Upon inspection it is a diaphragm earpiece. |
| accessory | |
| boxed | no |
| shape | flare |
| gwrok | yes |
| wax | no |
| bay | 5 |
| details on the field categories may be found here | |
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