An early Bakelite telephone with microphone transmitter, Bailleux no. 20, French, circa 1920, labeled 'Sm. Indlle. Telephones, 25 rue du a Septembre, Paris, Systeme G. Bailleux, no. 20084', mounted on varnished blackwood, 28.5 cm high, 19 cm wide, 13.5 cm…