Z4 is a ceramic partnership between the four members. Z4 realizes ceramic co-productions in which there is room for the creative input of the four group members. Z4 stands for "4 mushrooms", a reference to an old Utrecht pottery called "the four mushrooms". The interaction between potter, graphic artist and painters leads to unexpectedly beautiful results.
| Technique | Etching |
| Dimensions | 50 x 25 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
Bid 
| Technique | Lithograph |
| Dimensions | 70 x 86 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
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| Technique | Lithograph |
| Dimensions | 50 x 60 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
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| Technique | Etching |
| Dimensions | 31.5 x 25 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
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| Technique | Silkscreen |
| Dimensions | 23 x 14 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
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| Technique | Etching |
| Dimensions | 17 x 21 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
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| Technique | Hardcover |
| Dimensions | 27 x 27 cm (h x w) |
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| Technique | Etching |
| Dimensions | 56 x 39 cm (h x w) |
| Signed | Hand signed |
| Support | Paper |
| Framed | Only in Passe-partout |
Bid 
