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This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as
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because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
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142:. The black dots represent iron pellets. Text on left: 中藏铁子神砂 (Iron pellets inside magical grit), Text on right: 爛骨火油神砲 (Bone crushing petroleum magical artillery ).
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An illustration of a fragmentation bomb from the 14th century Ming
Dynasty book
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