Groninger Museum # F.M. HUTCHISON#incl. original paint.
Groninger Museum # SWATCH & MENDINI / Alessi # Swip Stolk, 1992, mint
Groninger Museum, Swip Stolk # PETER STRUYCKEN # silkscreened poster, 1999, mint
Swip Stolk # SWIP STOLK, Master Forever # 2010, mint