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| Catacombs. |
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| Catacombs. |
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| Catacombs. Marks—Notice the old tool marks on the ceiling made by the kevel hammer. Made when the ossuary was opened to the public, the black mark on the quarry ceiling allowed 19th century visitors to get their bearings in the galleries. |
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| Catacombs. |
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| Catacombs. |
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| Catacombs. |