YELLOWS, REDS AND VIOLET : DECEMBER 1966
The Estate of the Artist
Waddington Galleries, London
Private Collection, Northern Ireland, from whom acquired by the present owner, 2018
Oxford, Bear Lane Gallery, Patrick Heron, 4th May - 1st June 1968, cat. no.6;
Paris, La Galerie le Balcon des Arts, Terry Frost et Patrick Heron, June - August 1977.