Please contact the contributing institution for more information regarding the copyright status of this object.
Description
Earliest photo of De Forest Wireless Telegraph System, notarized 22 March 1915 by C. B. Cooper. "I hereby certify that the attached photograph marked 'De Forest wireless station, operated in Toronto, Canada, during August and September 1903----C. B. Cooper' is a picture of the De Forest Wireless Telegraph station operated by myself on the Fair grounds in Toronto during August and September 1903. I am shown at the desk. To my right is the spark gap and condensers, and to the right of that is the Helix connected in the aerial circuit."
Type
image
Format
Black & White
Identifier
EC153D1E-8F56-41BC-B78D-135738514253 2003-34-771
Subject
Telegraph, Wireless (LCSH) Telegraph stations (LCSH) De Forest Wireless Telegraph Company Electric spark gaps (LCSH) Telegraphers Cooper, Charles B
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.