Title
Topophone
Caption
The topophone, invented by Professor A.M. Mayer around 1880, is a device which artificially increases the distance between the ears, thus permitting te detection of sound with a more precise direction of the sound.
Credit line
Photo12
Reference
INV00004_015TOPOP
Model release
No
License type
Rights managed
Available size
8,8Mb (710,2Kb) / 5,9in x 5,8in / 1756 x 1753 (300dpi)