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| A Glacial Kame type slate birdstone, collected in Branch County, Michigan; image credit on full record. |
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| An opposite side view of this Glacial Kame type slate birdstone; image credit on full record. |
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| A frontal 'top-down' view of this birdstone a portion of its tail restored and a chip to its beak; image credit on full record. |
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| A 'tail-end' top-side view of this slate birdstone with partially restored fan tail; image credit on full record. |
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| An underside view of this Michigan slate birdstone, with collector's annotated inventory and origin notations; image credit on full record. |
