The last boulder of the run, and the most mineral: a closed handbuilt rock form whose left shoulder carries rust-crusted ridges — kin to 1865’s seams — while charcoal sheen-like patches drift across the dark faces. Its only opening is a single round hole near the top, small as a reed’s diameter, purpose unstated.
Why one small hole? The photo shows it and keeps the reason — a closed stone with one round opening near the crown. Piece 1891 of 10,000, listed at $18.91.
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