| Description | /1/1. 1 x ts. letter, 22 July 1970, from Mrs P. Vincent of The British Society of Aesthetics, Birkbeck College, University of London, to Roland Penrose, with member's card attached, 2p.
/1/2. 1 x ts. letter, 30 July 1970, reply from Roland Penrose to Mrs P. Vincent of The British Society of Aesthetics, Birkbeck College, University of London, 1p. |