Willem de Ridder, original event card and documents

Event card 'pass this card to your neighbour', 10 x 4.5 cm, typed text on bright orange stock. This copy was actually used in the Flux Festival Rotterdam Nov. 23 1964. Provenance coll. Frans Haks (see Silverman p.231 'Card piece No.1). Text reads 'wilt u a.u.b. zo snel mogelijk dit kaartje aan uw buurman overhandigen- dank u- willem de ridder'.

(2) Mounted b/w picture of interior of a 'PK kijkdoos', verso picture of women looking into the box, text on card by De Ridder, 9 x 12.5 cm. Provenance coll. Henk Peeters. (3) Copy of newspaper Kunst van Nu. Fluxus issue Sept/Oct 1966, including a Do It Yourself model voor a PK. (4) How to be satisfluxdecolant? Folded sheet, 26 x 16 cm, containing one sheet with 4 mounted versions of Willem de Ridder's 'Open/Close'. (5) Invitation leaflet for De Ridder show at Galerie A 1979. (total 5)