Title
Sergius P. Grace
Caption
Sergius P. Grace, Assistant Vice-President of the Bell Telephone Laboratories, makes speech and music issue from the burning electric arc in the center of the projector shown in the photograph circa 1930
Date
Feb 01, 1930
Credit line
Photo12/Universal Images Group/HUM Images
Reference
UMG22A04_091
Model release
No
Property release
No
License type
Rights managed
Available size
43,9Mb (3,1Mb) / 15,0in x 11,4in / 4485 x 3418 (300dpi)