| style | ear tube |
| brand | Unknown |
| based in | |
| trademark | |
| made | 1924 |
| retailer | |
| earpiece | solid silver |
| body | solid silver |
| horn | solid silver |
| horn dia | 10x4 mm |
| length | 20 mm |
| weight | 3 gm |
| size |
|
| grille | none |
| marks | Sterling |
| ring | no |
| adjustable | no |
| handed | both |
| rarity | unusual |
| build | tooled |
| condition | Good |
| acquired | 2012 |
| seller type | individual |
| found in | Escondido CA |
| country | USA |
| value |
|
| seller note | Antique Sterling Silver Hearing Aid Invisible Ear Tubes Horns in Org Box |
| comment | I have a US patent by Charles Fensky dated 1923 which describes this item. It seems the general term audiphone is applied to various ear tubes |
| accessory | |
| boxed | yes |
| shape | weird |
| gwrok | yes |
| wax | no |
| bay | 5 |
| details on the field categories may be found here | |