Green’s Dictionary of Slang

(US) the face.

1902		C.L. Cullen More Ex-Tank Tales 43: Handing me that peculiar grin of his that overswept his whole chart.
1908		B. Fisher A. Mutt in Blackbeard Compilation (1977) 44: Foreman Clearinghouse was visibly affected while reading the verdict and tears could be seen to roll down his chart.