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Knowledge / Safety Measures / Stamped Envelope Overprints / Differences |
Stamped envelope overprint difference: common term for two stamped envelopes with no stamped envelope overprint agreement |
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Stamped envelope overprint colour difference: common term for two the same stamped envelopes with no stamped envelope overprint colour agreement |
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Stamped envelope overprint position difference: common term for two the same stamped envelopes with no stamped envelope overprint position agreement |
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