Bessie Pease Gutmann “Betty” authentic #787

Bessie Pease Gutmann “Betty” #787
RARE. Sepia print of girl's face, in a vertical portrait design. #787 by Gutmann & Gutmann Inc. NY. Paper is showing some browning/aging on extreme borders.
The print has been in its pkg (cardboard and plastic) since the print was purchased from an antique store in the 90's. Although the original pictures were done in the 30's & 40's, other print runs were done by Gutmann & Guttman at later times and I am unable to document the actual age of this piece.
Print is 21” x 14 “