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| Potter's Test Piece Fragments, P 32360 b ... AMS Horizontal (normal) |
| Potter's Test Piece Fragments, P 32360 b ... AMS Horizontal (normal) |
| Potter's Test Piece Fragment ... AMS Horizontal (normal) |
| Potter's Test Piece Fragment ... AMS Horizontal (normal) |
| Potter's test piece fragment ... Jeff Vanderpool ... Well N 12:3. Horizontal (normal) ... 27 May 2021 |
| Potter's test piece fragment ... Jeff Vanderpool ... Well N 12:3. Horizontal (normal) ... 27 May 2021 |
| Potter's test piece fragment ... Jeff Vanderpool ... Well N 12:3. Horizontal (normal) ... 27 May 2021 |
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