Note 904 — Chapter LXXXIX · FROM THE CAPTURE OF OLYNTHUS TO THE TERMINATION OF THE SACRED WAR BY PHILIP.
Reading edition
Demosthen. Fals. Leg. p. 380. οὔθ᾽ ὅτι πρεσβευτὴς ἄλλος ᾕρητο ἀνθ᾽ αὑτοῦ, etc.
Æschines (Fals. Leg. p. 46. c. 43) does not seem to deny this distinctly.