 |
 |
 |
|
 |
|
 |
| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
 |
Knowledge / Safety Measures / Silk Threads / Errors |
Silk Thread Error: philatelic term for a paper with silk thread deviation caused by an error |
|
  |
 |
Missing Silk Thread: postage stamp caused by error printed on paper without silk thread |
Silk Thread Colour Error: philatelic term for a deviation caused by error from the intended silk thread colour |
 |
|
Double Silk Thread: postage stamp caused by error printed on paper with twice instead of once silk thread |
|
 |
 |