Flags whose reverse differs from the obverse
- 正反面异形旗帜（世界上绝大多数旗帜正反两面相对称，但是有少数旗帜正反两面是不相同的）
Flags whose reverse differs from the obverse
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abstract:
This article concerns national, sub-national and historical flags whose reverse is, or was, at some point of their history, different from the obverse.
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WordNet