Judy Dater (1941) Imogen [Cunningham] & Twinka at Yosemite, 1974. Silver print (c. 1980), mounted on card, signed and dated in pencil in the lower margin. Title, date and annotation "Photo appartenant à Jean Dieuzaide" in pencil on verso of mount. Image: 26.2 x 20.5 cm Sheet: 35.3 x 27.7 cm Bibliography: Judy Dater, Imogen Cunningham: A portrait, New York, New York Graphic Society, 1979, cover.