The Guardian: Obituary: Nimai Chatterji: Collector of material from postwar art and literary movements

Nimai Chatterji, who has died aged 77, was a collector in the purest sense: out of intellectual curiosity and love for his subject, he created a world-class collection relating to post-1945 avant-garde art and literary movements, from Situationism and Concrete Poetry (where the typographical or visual arrangement of words contributes to the intended effect) to happenings and Arte Povera The collection, amounting to tens of thousands of items, contains many media, from artists' books to posters, and from photographs to audio-visual material...