Δ(x) ≠ 0

find optical illusions, there are several.

Screen printing / Papier d’Arches – 640 g/m2 / Paper format: 40 X 50 cm / Print formst 25 X 29,7 cm / Year: 2025 / Print: 15 / © Youri Messen-Jaschin ® 2025 Prolitteris Zürich

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