catalogue number: 1969.01.32
executed: 1969
classification: works on paper
object/work type: drawing
technique/material: black ink on blue graph paper
placement of X (odd numbers) or empty (even numbers) in squares of 1 × 1 cm grid at random
dimensions: 50 × 70 cm
signature and inscriptions: []
current location: current location unknown
collecting history:
related works:
comment: executed in cooperation with Warmold van der Feltz
rights & reproduction: herman de vries