Bridget Riley, Untitled [Nineteen Greys D], 1968. Courtesy of the artist

28. Untitled [Nineteen Greys D]

ArtistBridget Riley
Year1968
MediumScreen print in 19 colors on Saunders board
Dimensions30 x 30 in. (76.2 x 76.2 cm)
CollectionCourtesy of the artist