[1970s] Jan Dibbets, artists' posters Multiples Inc. & Leo Castelli (1) Jan Dibbets, Perspective Correction - 5 poles. New York, Multiples Inc., 1970. Offset litho on paper, 50.5 x 65 cm, printed recto, folded in four as issued. Artists' multiple produced for the portfolio 'Artists and Photographs'. Edition of 1200. Fine clean copy. (2) Jan Dibbets. Announcement poster for a solo show at Leo Castelli Gallery New York held October 4 - 25, 1975. Colour offset printed, 56 x 43 cm, folded twice, very good copy.

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