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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 / Accidentals |
Press Mark Accidental: philatelic term for a press mark deviation caused by accidental |
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Shifted Press Mark: postage stamp with caused by accidental shifted press mark to another position as intended |
Split Press Mark: postage stamp with caused by accidental shifted press mark which is extended over multiple sheet positions |
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Missing Press Mark: postage stamp with caused by accidental shifted press mark which do not reach a sheet position |
Light Press Mark: postage stamp with caused by accidental clear but too light press mark |
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Strong Press Mark: postage stamp with caused by accidental clear but too strong press mark |
Press Mark Plate With Accidental: philatelic term for a press mark printed from a caused by accidental damaged printing form |
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