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| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Safety Measures | Quality |
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Knowledge / Prints / Print Substrates / Safety Measures |
Paper safety measure: safety measures made inside the paper during the manufacturing process |
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Imbued paper: during the manufacturing process coloured paper (front and back are always in the same colour) |
Granite paper: safety measure inside the paper made of added coloured silk fibres during the manufacturing process to prevent forgeries |
Goldbeater´s skin: bubble-like, transparent safety paper. The design print was made on the very water sensitive collodium layer on back whereat the design print is destroyed during soaking |
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Press mark: safety measure inside the paper made of after the manufacturing process added colourless design to prevent forgeries |
Silk thread paper: safety measure inside the paper made of during the manufacturing process added coloured silk thread to prevent forgeries |
Paper with watermark: safety measure inside the paper made of during the manu-facturing process pressed in design to prevent forgeries |
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