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| Trilobite Tracks Fossil. 570,000,000 to 260,000,000 years before present (1 image) |
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| Isotelus maximus Trilobite Fossil. 504,000,000 to 438,000,000 years before present (1 image) |
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| Isotelus maximus Trilobite Fossil. 504,000,000 to 438,000,000 years before present (1 image) |
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| Flexicalymene meeki Trilobite Fossil. 504,000,000 to 438,000,000 years before present (1 image) |
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| Elijah Strong Military Papers. 1804-1808 (14 images) |
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| Gilead Anti-Slavery Society of Clermont County Minutes. 1836-1838 (23 images) |
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| Clermont County Infirmary Condensed History. 1854-1883 (3 images) |
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| Marietta, Cincinnati and Hillsborough Railroad Time Table and Rules. 1856 (14 images) |
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| Civil War 89th Ohio Volunteer Infantry National Colors. 1862-1865 (1 image) |
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