Eric Andersen, various documents

Opus card 'Don't do anything to this very nice card but mail it'. Addressed to Deelstra, 1967. + Film score. Text and drawing printed on cardboard, 29.5 x 21 cm. Undated. + Martha Salone envelope with 3 cards including Tape Piece. + Recipe score.

+ Something Else Press score. + Small card Opus 50. + Martha Salone envelope containing Booklet Opus 1966. 22.5 x 15.5 cm, 24 pp. Plus nine Opus instruction cards on stickers, 12 x 8 cm. + Information about the Calendar project 1971, in Martha Salone envelope. + Excerpt from Sommerudstillingen 63 catalogue. + Card announcing new address 1974 sent to Tjeerd Deelstra.