Source

Before reproducing materials, images and graphical elements from Library and Archives Canada's website, please read the copyright information found on the Important Notices page.

Artist's rendition of Alexander G. Bell's 1877 IMPROVEMENTS ON ELECTRIC TELEPHONY
"Improvements on Electric Telephony." Patent no. 7789, filed by Alexander G. Bell, 1877
Source: Library and Archives Canada
© Library and Archives Canada
nlc-11302