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| Start / | Knowledge / | Safety Measures / |
| Burelages | Combinations | Design Prints | Postal Stationery Form Prints | Stamp Impressions |
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Knowledge / Safety Measures / Others / Postal Stationery Form Prints |
Postal Stationery Form Print Safety Measure: safety measures made as postal stationary form print |
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Azure Lines: narrow wavy lines unter a amound field in a postal stationary form print to prevent value manipulations |
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Dot Gap: missing dot in a adress line in a postal stationary form print to prevent forgeries |
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