[herman de vries] herman de vries, ephemera 1960s (1) Weiss-Weiss, Galerie Schmela Dusseldorf, 1965. Invitation card, 4 pp. Major group show with Beuys, Fontana, Klein, Manzoni, Schoonhoven, Soto, de vries et al. (2) Gianni Colombo and herman de vries, Galerie Dorothea Loehr, Frankfurt am Main, 1966. Invitation card, 4 pp. with hand added gallery directions. (3) herman de vries, toevals-objektivering, ’t Venster, Rotterdam 1967. Solo show invitation card, 4 pp. Verso addressed to J.A. Sonnenberg (director Galerie Delta Rotterdam, organizer of many Zero exhibitions). (4) Small Confrontation, Europaïschen Forum Alpbach, 1967. Group show organized by galerie Heide Hildebrand, with Cruz-Diez, Kriwet, Megert, Lassnig, de vries et al. Poster, 43 x 30 cm, folded twice. (total 4)

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