Canadian Music Trade Journal, July, 1917, p. 53: "The Cambridge Piano Co., Ltd., Toronto, are marketing the Cambridge Phonograph and are open to talk agencies to dealers. Mr. M.G. Beatty, president and manager of the Cambridge Piano Co., is quite enthusiastic over the inducements that his line represents."
Canadian Music Trade Journal, July, 1917, p. 41. Announcement of the Cambridge phonograph to the music trade. Note: "Built by Canadians".
Canadian Furniture World and the Undertaker, July, 1917, p. 34.
Photographs sent by Norman Brooks: "This machine has seen better days, but a good view of the metal label from the Cambridge Piano Co.".
Toronto Daily Star, March 8, 1929, p. 26. R.S. Williams display ad listing used phonographs for sale including a Cambridge upright and a Beattie console model.
