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Period 15 | ๐ช๐ถ๐๐ป๐ฒ๐๐ ๐ ๐ฎ๐ฟ๐ธ๐
Witness marks is a term from machining and archaeology: the small cut, impression, or trace left on a workpiece or artifact that records the history of its making and use โ evidence that persists after the process is complete.
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