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| Start / | Knowledge / | Safety Measures / |
| Accidentals | Designs | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Safety Measures / Press Marks / Kinds |
Press Mark Kinds: summary of the different intended styls of a press mark |
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With Press Mark: postage stamp with intended style issued with press mark |
Without Press Mark: postage stamp with intended style issued without press mark |
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