4 0 c m
31cm
actual image size: 23cm x 32cm
Description
Drawing by Emanuel Groser, Berlin, dated 24 September 1911, with Edison's signature. Thomas Alva Edison (1847-1931) was a prolific American inventor who registered over 1000 patents. His inventions include the automatic telegraph, the electric lamp, the phonograph (gramophone) and the kinetoscope, an early form of cinematography.
Image Details
Image Ref.
10301249
© Science Museum / Science & Society Picture Library