Title
Edison carbon telephone
Caption
Edison carbon telephone
1879
Wood engraving
London
Date
1879
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07094_390000688
License type
Rights managed
Available size
40.9Mb (2.8Mb) / 15.0in x 10.6in / 4500 x 3178 (300dpi)