Medium: original silkscreen / serigraph. This silkscreen was printed in 1966 and issued in an edition of 2200 by the Stedelijk Museum of Amsterdam. This screenprint was executed by William Turnbull especially for the "Vormen van der Kleur” (New Shapes of Color) portfolio, published in 1966 by the Stedelijk Museum and now rare. Size: 10 1/2 x 10 1/2 inches (270 x 270 mm). A beautiful impression in rich color. Not signed.