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| Accidentals | Changes | Designs | Errors | Fakes | Issue Occasions | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality | Safety Measures |
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Knowledge / Punchings / Designs |
Punching design: artistically designed pictorial representation of a punching |
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E punching: pictorial representation of the letter "E" as punching for changing definitive postage stamps into rail official postage stamps |
T punching: pictorial representation of the letter "T" as punching for changing definitive postage stamps into postage due stamps |
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Text punching: pictorial representation of text as punching |
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