Richard Allen 1933-199914. Warp, c.1970acrylic on canvas60 by 136 inchesstamped with estate mark versoestate no. ENCS 1ProvenanceEstate of the ArtistExhibitedLondon, St Katherine’s Docks, Match Shed, Richard Allen , 1970LiteratureWelsh Arts Council, Matrix exhibition catalogue, 1971, illus b/w