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Knowledge / Punchings / Errors

Punching Error: philatelic term for a punching deviation caused by error

Inverted Punching: postage stamp with caused by error 180 degrees rotated horizontal punching

Double Punching: postage stamp with caused by error twice instead once punching

Double Punching One Invert-ed: postage stamp with caused by error twice (horizontal and inverted) instead once horizontal punching

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