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Sent from the Past: Entrance to Blue Hole, Castalia, Ohio (Date Unknown)
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Sent from the Past: Back of Entrance to Blue Hole, Castalia, Ohio (Date Unknown)
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Sent from the Past: The Aerating Water Wheel at the Blue Hole, Castalia, Ohio (Date Unknown)
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Sent from the Past: Back of The Aerating Water Wheel at the Blue Hole, Castalia, Ohio (Date Unknown)