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Stoneware in Southwestern Pennsylvania $22.95 … |
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Potters of the Tulpehocken: A Pioneer Study of the Potters of the Western Part of Berks County, Southeastern Pennsylvania … |
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Clays and clay industries of Pennsylvania: I. Clays of western Pennsylvania (in part). Description of the clays and clay industries in the Ohio, … state college. Annual report … 1897. app) … |
