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6. Portion of the walls of Rome, restored by order of Narses, in the sixth century; the stones are rudely shaped and separated by large interstices, filled in with brick, and a large quantity of mortar.
Seroux
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8. A kind of opus incertum degenerated, seen in a portion of the walls of Rome, restored in the sixth century, by Belisarius; the form of the stones is very irregular, and the joints large with abundance of mortar.
Seroux
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