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| Start / | Knowledge / | Cancellation Kinds / |
| Accidentals | Categories | Changes | Designs | Differences | Errors | Fakes | Issue Occasions |
| Kinds | Mistakes | Parallel Issues | Safety Measures | Quality | Other Postmarks | ||
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Knowledge / Cancellation Kinds / Hand Postmark Cancellations / Safety Measures |
Hand Postmark Safety Measure: safety measures that was carried out as a hand postmark |
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Security Hand Postmark: postage stamps that have been given a hand postmark as a protective measure against counterfeiting |
Security Hand Postmark: hand postmark that was stamped on parcel cards in addit-ion to the posting hand postmark in order to make this stamp unusable for collector purposes |
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