| Description | /1. 1 x ms. letter, 20 March 1962, from Jean Hélion, Paris, to Roland Penrose, 1p.
/2. 1 x ts. letter, 30 July 1972, from Merle Schipper, Los Angeles, to Roland Penrose, 1p.
/3. 1 x ts. letter, 3 August 1972, from Roland Penrose to Merle Schipper, Los Angeles, 1p.
/4. exhibition notice card, 1980, 'Hélion: Les Années 50' at Galerie Karl Flinker, Paris |