1918 Poland (Mi. 17 - 19, Full Set, Signed, CV $30) (Image)

1918 10h Poland (Inverted Overprint, Print Error, Mi. 17, Signed, Canceled) (Image)

1918 20h Poland (Inverted Overprint, Print Error, Mi. 18, Signed, Canceled) (Image)

1918 45h Poland (Inverted Overprint, Print Error, Mi. 19, Signed, Canceled) (Image)

1918 Poland, German occupation Censored Registered Cover from Warsaw to Berlin, franked with 4 x Mi. 6, 3 x Mi. 7, 2 x Mi. 8, Mi. 9 (Image)

1921 5pf Poland (Type II, Signed, CV $70) (Image)

1918-19 Poland, Group (Different Types) (Image)

1918-19 Poland (Mi. 20 - 26, Full Set, Signed, CV $160) (Image)

1918-19 10h/30h Poland (Violet Overprint, Mi. 22 b, CV $130) (Image)

1918 Poland, Collection (Variety of Types) (Image)

1918-49 Poland, Collection (Full Sets, CV $400) (Image)

1918-54 Poland, Collection (CV $280) (Image)

1919 Poland (Mi. 54 - 64, Full Set, CV $40) (Image)

1919 Poland (Mi. 130 - 134, Full Set, CV $50) (Image)

1919 Poland (Mi. 135 - 136, Full Set, Signed, CV $580) (Image)

1919 Poland (Mi. 1, 3, 5, Signed, CV $80) (Image)

1919 Krakow, Overprint 'Porto', Postage Due Stamps, Local Issue, Poland (Image)

1919 Krakow, Overprint 'Porto', Postage Due Stamps, Local Issue, Poland (Canceled) (Image)

1919 Slutsk Local Issue, Poland (Canceled) (Image)

1919 Slutsk Local Issue, Poland (Image)

1919 Levant Polish Post Office in Turkey, Poland (Mi. 1 - 12, Full Set) (Image)

1919 Levant Polish Post Office in Turkey, Poland (Mi. 1 - 12, Full Set, MNH) (Image)

1919 Levant Polish Post Office in Turkey, Poland (Mi. I - VII, Full Set, CV $50) (Image)

1919 Poland Cover (Front side) from Tarnow, franked with Mi. 40 (Image)

1919 Poland Registered Cover from Krakow to Myslenice, franked with Mi. 41 (Image)