Talking Machine World, February 1918, p. 68: "New talking machine firms recently registering in Toronto, Ont., include The Phonograph Shop and the Concertola Mfg. Co."

---

Canadian Music Trades Journal, May, 1918, p. 62. A display ad for the Concertola phonograph manufactured by The Concertola Manufacturing Company, 321 King St. W., Toronto.

---

An upright Concertola listed on Facebook Marketplace in Port Colbourne, Ontario in 2026.