 |
 |
 |
|
 |
|
 |
| Start / | Knowledge / | Safety Measures / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
 |
Knowledge / Safety Measures / Silk Threads / Accidentals |
Silk thread accidental: philatelic term for a paper with silk thread deviation caused by accidental |
|
  |
 |
Missing silk thread: postage stamp with shifted design print which reach a sheet position without silk thread caused by accidental |
Silk thread colour acciden-tal: philatelic term for a deviati-on from the intended silk thread colour caused by accidental |
 |
 |
Shifted silk thread: postage stamp with shifted silk thread to another position as intended caused by accidental |
Oblique silk thread: postage stamp with out of alignment shifted silk thread caused by accidental |
 |
 |