Gardner, Isabella Stewart. (1840–1924) Autograph SignatureA rare autograph signature from the leading American art collector, philanthropist, and patron of the arts. She has signed on the verso of a torn sheet and dated Palazzo Barbaro, Venezia, 1897. Toning, some tears, and later writing in pencil at the lower right. Remnants of a halftone photograph on the verso. 7. 75 x 4. 5 inches.