Signature Signed in stone, bottom left image: Biddle
Recto, signed and dated in graphite, top left: George Biddle 1937
Marks Watermark, top right, oriented sideways: BFK
Inscription Recto, bottom left corner, in graphite, in artist's hand: 8/20 No. 90. Nude.
Bottom left, in blue ink, in different hand: 63.75
Bottom right corner, in graphite, in different hand: 90
Verso: none