Accent and slang alone distinguish between them; the argot, however, is practically the same.
"The Maids of Paradise"
Robert W. (Robert William) Chambers
There was, beside himself, an old Frenchman scolding over his late breakfast; two young artists with Van Dyke beards, who ordered the most remarkable things in the same French argot that the waiters spoke; and a young lady and a young gentleman at the table next to his own.
"Gallegher and Other Stories"
Richard Harding Davis
Hondo, tapaderos, bad hombre, tecolote, bronco, maverick, side-winder-rapaciously he seized upon them as bits of the argot of fairyland.
"The Desert Valley"
Jackson Gregory