Letter from Bridget Riley to Rose Gerlach, 1964 September 15 :

Title devised by cataloger.
Writing is present only on one side of each sheet.
Bridget Riley, born in London on April 25, 1931, is an English painter and printer known for her op-art. Her first solo exhibition was at Gallery one in London in 1962, and she was the first English painter to win the International Prize for Painting at the Venice Biennale in 1968.
Autograph letter addressed to Rose Gerlach from Bridget Riley at 68 Warwick Road in London, written in blue ink. The letter was composed in response to Mrs. Gerlach's letter to Riley expressing an interest in her work. Riley mentions she has enclosed a catalogue of her second one-man show in London as well as photographs of her paintings "Hidden Squares" from 1961, "Climax" from 1963, and "White Disks II" from 1964. She also informs Mrs. Gerlach of her upcoming exhibition in New York at the Richard Feigen Gallery. The exhibition took place in 1965.