| style | quack |
| brand | Bernard Cie |
| based in | France |
| trademark | Audiphone |
| made | 1875 |
| retailer | |
| earpiece | metal |
| body | metal |
| horn | metal |
| horn dia | 50x20 mm |
| length | 58 mm |
| weight | 7 gm |
| size |
|
| grille | none |
| marks | Audiphone Invisible Bernard 7 Rue De Londres Paris Depose |
| ring | no |
| adjustable | no |
| handed | no |
| rarity | unusual |
| build | tooled |
| condition | Good |
| acquired | 2012 |
| seller type | dealer |
| found in | Littleton CO |
| country | USA |
| value |
|
| seller note | Bernard Cie, 7 Rue De Londres Paris Magnetic pair Audiphone, |
| comment | Amazing that people thought these might actually work ! The ear pieces are slightly magnetic - the compass is to demonstrate that point ! The device is USELESS |
| accessory | |
| boxed | yes |
| shape | weird |
| gwrok | omit |
| wax | no |
| bay | 4 |
| details on the field categories may be found here | |