
A roughly square slab with irregular, hand-formed edges, photographed August 16, 2026. The top face carries a bold pale gray-white spiral over a dark brown to near-black ground, with fine crackle lines running through the pale pigment and a sharp-edged dark rectangular patch set within the swirl, slightly below and right of center. A small chipped area sits at the upper-right corner, and a dark band runs around the visible edge and base. The underside is dark and matte, with “2385” handwritten near its center and scattered small pale flecks. A fine hairline crack sits near one corner of the back.
What is the dark rectangle inside the spiral? A sharp-edged dark rectangular patch sits inset within the pale spiral, slightly below and right of center, its crisp boundary standing apart from the looser swirl around it. Piece 2385 of 10,000, listed at $23.85.
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