Screenprint in colours, on wove paper, with full margins.

1999

I. 25.5 x 25.5 cm (10 x 10 in.)
S. 42 x 41.6 cm (16 1/2 x 16 3/8 in.)

Signed, titled, dated and numbered 137/200 in pencil (there were also 20 artist's proofs), donated to the Serpentine Gallery, London on the occasion of the exhibition Bridget Riley: Paintings from the 1960s and 70s, framed.