Caption
Telephone transmitter mechanism by Johann Philipp Reis, 1834 – 1874, German scientist and inventor
Date
Feb 04, 2020
Credit line
Photo12/imageBROKER/Heinz-Dieter Falkenstein
Reference
BRK26C57_292
Model release
No
Property release
No
License type
Rights managed
Available size
186.9Mb (6.1Mb) / 22.6in x 32.1in / 6790 x 9623 (300dpi)