SourceBefore reproducing materials, images and graphical elements from Library and Archives Canada's website, please read the copyright information found on the Important Notices page. Léon Scott de Martinville's phonautograph, 1857
Source: Talking machines V.K. Chew - 2nd ed. -- London : H.M.S.O., 1981. -- iv, 80 p. : ill. ; 20 cm. -- ISBN 0112903290 (pbk.).-- P. 17 © Public Domain nlc-4278 |