Now showing: Poland - Postage stamps (1950 - 1959) - 321 stamps.
![[No 440-441a Overprinted GROSZY in Different Colors and Fonts, type XLT1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/XLT1-s.jpg)
WM: Žádný Perforation: 10¾; 11; 11¼
![[No. 492-495 Overprinted GROSZY in Different Colors and Fonts, type IMW]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/IMW-s.jpg)
WM: Žádný Perforation: 10¾; 12¾
![[No. 502-504 Overprinted GROSZY in Different Colors and Fonts, type INE]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INE-s.jpg)
WM: Žádný Perforation: 10¾; 12¾
![[No. 502-504 Overprinted GROSZY in Different Colors and Fonts, type INF]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INF-s.jpg)
WM: Žádný Perforation: 10¾; 11¼
![[No. 531 Overprinted GROSZY in Different Colors and Fonts, type INW]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INW-s.jpg)
WM: Žádný Perforation: 11¼ x 12
![[No. 529-530 Overprinted GROSZY in Different Colors and Fonts, type INX]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INX-s.jpg)
![[No. 529-530 Overprinted GROSZY in Different Colors and Fonts, type INY]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INY-s.jpg)
WM: Žádný Perforation: 10¾; 11½
![[No. 532-533 Overprinted GROSZY in Different Colors and Fonts, type INZ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/INZ-s.jpg)
![[No. 532-533 Overprinted GROSZY in Different Colors and Fonts, type IOA]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/IOA-s.jpg)
WM: Žádný Perforation: 12½ x 12¾
![[No. 534 Overprinted GROSZY in Different Colors and Fonts, type IOB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/IOB-s.jpg)
WM: Žádný Perforation: 10¾; 11¼
![[No. 535 Overprinted GROSZY in Different Colors and Fonts, type IOC]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/IOC-s.jpg)
WM: Žádný Perforation: 12½ x 12¾
![[No. 536 Overprinted GROSZY in Different Colors and Fonts, type IOD]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/IOD-s.jpg)
8. leden WM: Žádný Sheetsize: 100 Design: W.Zakrzewski Engraving: M.R. Polak Perforation: 11¾:11½; 12½:12¾
![[Six Years Plan, type KM]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KM-s.jpg)
![[Six Years Plan, type KM1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KM1-s.jpg)
![[Six Years Plan, type KM2]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KM2-s.jpg)
![[Six Years Plan, type KM3]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KM3-s.jpg)
2. březen WM: Žádný Sheetsize: 100 Design: B. Brandt Engraving: St. Łukaszewski Perforation: 12½:12¾
![[Women's League Congress, type KQ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KQ-s.jpg)
24. březen WM: Žádný Sheetsize: 70 Design: B. Brandt Engraving: M.R. Polak, Cz. Słania Perforation: 12:12½
![[The 80th Anniversary of the Paris Commune, type KR]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KR-s.jpg)
1. duben WM: Žádný Sheetsize: 100 Design: St. Łukaszewski Perforation: 12½:12¾
![[International Day of the Child, 1 June 1951, type KU]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KU-s.jpg)
![[International Day of the Child, 1 June 1951, type KV]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KV-s.jpg)
20. duben WM: Žádný Sheetsize: 100 Design: P. Picasso Engraving: B. Brandt Perforation: 12¾:12½
![[Dove of Peace, Overprint, type KS]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KS-s.jpg)
25. duben WM: Žádný Sheetsize: 100 Design: St. Łukaszewski Perforation: 10¾-14
![[Labour Day, type KT]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KT-s.jpg)
9. květen WM: Žádný Sheetsize: 100 Design: B. Brandt Engraving: E. Konecki Perforation: 11½:11¾; 12¾:12½
![[Nowa Huta Steelworks, type KW]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KW-s.jpg)
![[Nowa Huta Steelworks, type KW1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KW1-s.jpg)
![[Nowa Huta Steelworks, type KW2]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KW2-s.jpg)
![[Nowa Huta Steelworks, type KW3]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/KW3-s.jpg)
5. srpen WM: Žádný Sheetsize: 100 Design: B. Brandt Perforation: 10¾-12¾
![[The 3rd World Youth Festival in Berlin, Germany, between 5 and 19 August 1951, type LH]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LH-s.jpg)
1. září WM: Žádný Sheetsize: 140 Design: St. Łukaszewski Perforation: 12:12½
![[Boleslaw Bierut Overprint, type LM]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LM-s.jpg)
30. říjen WM: Žádný Sheetsize: 100 Design: St. Łukaszewski Perforation: 12½:12¾
![[The Month of the Polish-Soviet Friendship, type LN]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LN-s.jpg)
![[The Month of the Polish-Soviet Friendship, type LO]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LO-s.jpg)
15. listopad WM: Žádný Sheetsize: 100 Design: E. Konecki Perforation: 12¾:12½
![[The Polish Week of Music, type LP]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LP-s.jpg)
![[The Polish Week of Music, type LQ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LQ-s.jpg)
17. listopad WM: Žádný Sheetsize: 4 (1x4) Design: W.Zakrzewski Engraving: M.R. Polak Perforation: 12½:12¾
![[The Congress of the Polish Philatelic Society in Warsaw, type ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/0699-b.jpg)
17. listopad WM: Žádný Sheetsize: 4 (1x4) Design: W.Zakrzewski Engraving: M.R. Polak Perforation: 12½:12¾
![[The Congress of the Polish Philatelic Society in Warsaw, type ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/0699-b.jpg)
4. prosinec WM: Žádný Sheetsize: 100 Design: Cz. Słania Engraving: Cz. Słania Perforation: 12¾:12½
![[Six Years Plan - Coal Mining, type LV]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LV-s.jpg)
![[Six Years Plan - Coal Mining, type LV1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LV1-s.jpg)
10. prosinec WM: Žádný Sheetsize: 100 Design: R. Kleczewski Engraving: B. Brandt Perforation: 11¾:11½; 12½:12¾
![[Six Years Plan - House Building, type LX]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LX-s.jpg)
![[Six Years Plan - House Building, type LX1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LX1-s.jpg)
15. prosinec WM: Žádný Sheetsize: 100 Design: R. Kleczewski Engraving: M.R. Polak Perforation: 12½:12¾
![[SixYears Plan - Electro-industry, type LZ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LZ-s.jpg)
![[SixYears Plan - Electro-industry, type LZ1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LZ1-s.jpg)
18. leden WM: Žádný Sheetsize: 100 Design: Cz. Słania, B. Brandt, M.R.Polak Engraving: E. Konecki, B. Brandt, St. Łukaszewski Perforation: 12½:12¾
![[The 10th Anniversary of the Polish Workers' Party, Rebuilding Warsaw, type MB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/MB-s.jpg)
![[The 10th Anniversary of the Polish Workers' Party, Rebuilding Warsaw, type MC]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/MC-s.jpg)
![[The 10th Anniversary of the Polish Workers' Party, Rebuilding Warsaw, type MD]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/MD-s.jpg)
28. březen WM: Žádný Sheetsize: 100 Design: Cz. Słania Engraving: Cz. Słania Perforation: 12½ x 12¾
![[The 5th Anniversary of the Death of General Karol Swierczewski, type MG]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/MG-s.jpg)
![[The 5th Anniversary of the Death of General Karol Swierczewski, type MG1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/MG1-s.jpg)