 |
 |
 |
|
 |
|
 |
| Start / | Knowledge / | Safety Measures / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
 |
Knowledge / Safety Measures / Stamped Envelope Overprints / Parallel Issues |
Stamped envelope overprint parallel issue: the same stamped envelopes issued at the same time with different stamped envelope overprints |
|
Stamped envelope overprint colour parallel issue: different stamped envelopes issued at the same time with the same stamped envelope overprints in the same colour |
|
 |
 |
Black stamped envelope overprint "Zwei Silbergroschen Post-Couvert" |
Black stamped envelope overprint "Drei Silbergroschen Post-Couvert" |
 |
 |