Below are some sites we would like to suggest
Gallery representing the Estate of Richard Allen
Richard Allen in the Tate Collection. The Collection holds the National Collection of British Art which is displayed at Tate Britain, Tate Modern, Tate Liverpool and Tate St Ives.
Municipal gallery staging the 2011 Richard Allen exhibition: Richard Allen in the 60s and 70s.
Gallery with an interest in Richard Allen's work.
Works by Richard Allen in the Government Art Collection
Works by Richard Allen owned by the British Council
Contact details to purchase Catalogue of Richard Allen Retrospective, University of Wales, Aberystwyth
Review of Richard Allen - A Retrospective, Offer Waterman Gallery, London 2008
Review of work at Art 2009, London
Chronology of reductive art (minimalist art), 1800-today