 |
1858 First Russian stamp on a unique letter from Kłomnice cancelled with a red mark
|
 |
1919 Unique sheet of Skałata local issue
|
 |
1919 Rare proofs of the Reigning Committee
|
 |
1942 Woldnenberg, rare variety of first issue Widow
|
 |
1945 Stamp in red with the rarest first form overprint
|
 |
1920 Unique stamp with double DANZIG overprint |