Three sheets, uniformly 35 x 24.5 cm. in original portfolio.
The first sheet has an unique (psychedelic) drawing by de Ridder of the title text in red and black.
The second sheet has two drawings in red and black of the plan for the stage set for the performance and a front view of the same stage. There is a third b/w drawing of a map.
The third sheet has a text, typewritten in Dutch, on yellow thin cardboard, introducing the concept of de Ridder’s pop cum Fluxus performance show “Honk Honk it’s the Bonk”.
Very good condition although the front sheet drawing has some smudges and the other drawings have some show-through from the glue which has been employed to tip the drawings onto the card – most probably an unique document – at least thus.