VERENIGING VOOR PENNINGKUNST -- "SPINOZA". (Zandvoort, Argentor, 2001). Bronze cast medal by Eric Claus. Ø 96 mm. -- "CONSTANTIJN HUYGENS". (1996). Bronze cast medal by Elisabeth Varga. Ø 84 mm. -- "CARL LINNAEUS". (1978). Bronze cast medal by Christien Nijland. Ø 66 mm. -- (3).