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The bird sculpture in the top photo was carved inside the 5 mm diameter drilled cavity
at the rear end of this abstractly bird-form sandstone. A
bird face is also cut into the opposite side of the head,
with an open beak; a remarkable piece of work considering the
sharp angle of that side to the surface of the cavity. The sculpted area within the cavity is coated with fine sand
unrelated to the rock itself, almost certainly used as an
abrasive in forming the image.
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