Now showing: Poland - Postage stamps (1950 - 1959) - 634 stamps.
7. August WM: None Sheetsize: 100 Design: Cz. Słania Engraving: E. Konecki Perforation: 12¾:12½
![[The Building of a New Electric Power Plant in Jaworzno, type NS]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NS-s.jpg)
![[The Building of a New Electric Power Plant in Jaworzno, type NS1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NS1-s.jpg)
![[The Building of a New Electric Power Plant in Jaworzno, type NS2]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NS2-s.jpg)
18. August WM: None Sheetsize: 100 Design: Z. Polasińska Perforation: 12½:12¾
![[Historic Buildings in Pieniny, type NV]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NV-s.jpg)
![[Historic Buildings in Pieniny, type NW]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NW-s.jpg)
![[Historic Buildings in Pieniny, type NX]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NX-s.jpg)
23. August WM: None Sheetsize: 100 Design: E. Konecki, Cz. Słania, St. Łukaszewski Engraving: B. Brandt, M.R. Polak, St. Łukaszewski Perforation: 12¾:12½
![[The Day of Polish Aviation, type NY]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NY-s.jpg)
![[The Day of Polish Aviation, type NZ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/NZ-s.jpg)
![[The Day of Polish Aviation, type OA]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OA-s.jpg)
1. September WM: None Sheetsize: 100 Design: Cz. Słania Engraving: Cz. Słania Perforation: 12½:12¾
![[The 1000th Anniversary of the Birth of Ibn Sina, also known as Avicenna, type OB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OB-s.jpg)
1. September WM: None Sheetsize: 100 Design: E. Konecki Engraving: Cz. Słania Perforation: 12½:12¾
![[The 150th Anniversary of the Birth of Victor Hugo, type OC]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OC-s.jpg)
10. September WM: None Sheetsize: 100 Design: B. Świderska Engraving: E. Konecki Perforation: 12½ x 12¾
![[Rebuilding the Shipyard in Gdansk, type OD]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OD-s.jpg)
![[Rebuilding the Shipyard in Gdansk, type OD1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OD1-s.jpg)
18. October WM: None Sheetsize: 100 Design: Cz. Słania Engraving: Cz. Słania Perforation: 12¾ x 12½
![[Six Years Plan - Mining, type LV2]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/LV2-s.jpg)
25. October WM: None Sheetsize: 100 Design: R. Kleczewski Engraving: Cz. Słania Perforation: 12½:12¾
![[Henryk Sienkiewicz, type OG]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OG-s.jpg)
7. November WM: None Sheetsize: 70 Design: B. Brandt Engraving: Polska Wytwórnia Papierów Wartościowych. Perforation: 12 x 12½
![[The 35th Anniversary of the October Revolution in Russia, type OH]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OH-s.jpg)
![[The 35th Anniversary of the October Revolution in Russia, type OH1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OH1-s.jpg)
7. November WM: None Sheetsize: 100 Design: M.R. Polak Engraving: Polska Wytwórnia Papierów Wartościowych. Perforation: 12½ x 12¾
![[The Month of the Polish-Soviet Friendship, type OJ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OJ-s.jpg)
![[The Month of the Polish-Soviet Friendship, type OJ1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OJ1-s.jpg)
4. December WM: None Sheetsize: 100 Design: E. Konecki Engraving: St. Łukaszewski Perforation: 12½ x 12¾
![[The Day of the Polish Miners, type OL]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OL-s.jpg)
![[The Day of the Polish Miners, type OM]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OM-s.jpg)
5. December WM: None Sheetsize: 100 Design: K. Sopoćko Perforation: 12½ x 12¾
![[The Second International Wieniawski Violin Players Competition, in 1952, type ON]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/ON-s.jpg)
![[The Second International Wieniawski Violin Players Competition, in 1952, type OO]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OO-s.jpg)
12. December WM: None Sheetsize: 100 Design: Cz. Słania Engraving: Polska Wytwórnia Papierów Wartościowych. Perforation: 12¾ x 12½
![[Car Factory in Zeran, Warsaw, type OP]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OP-s.jpg)
![[Car Factory in Zeran, Warsaw, type OP1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OP1-s.jpg)
12. December WM: None Sheetsize: 100 Design: R. Kleczewski Perforation: 12½ x 12¾
![[World Peace Congress in Vienna, Austria, type OS1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OS1-s.jpg)
![[World Peace Congress in Vienna, Austria, type OS]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OS-s.jpg)
2. February WM: None Sheetsize: 70 Design: E. Szancer Perforation: 10¾-12¾
![[The 10th Anniversary of the Victory of Stalingrad, type OT]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OT-s.jpg)
![[The 10th Anniversary of the Victory of Stalingrad, type OT1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OT1-s.jpg)
20. February WM: None Sheetsize: 100 Design: Cz. Słania Engraving: M.R. Polak Perforation: 12¾ x 12½
![[Car Industry, type OV]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OV-s.jpg)
![[Car Industry, type OV1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OV1-s.jpg)
14. March WM: None Sheetsize: 100 Design: K. Sopoćko Perforation: 12½ x 12¾
![[The 70th Anniversary of the Death of Karl Marx in 1883, type OX]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OX-s.jpg)
![[The 70th Anniversary of the Death of Karl Marx in 1883, type OX1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OX1-s.jpg)
28. April WM: None Sheetsize: 100 Design: Cz. Kaczmarczyk Perforation: 12¾
![[Labour Day, type OZ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/OZ-s.jpg)
![[Labour Day, type PA]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PA-s.jpg)
30. April WM: None Sheetsize: 100 Design: Cz. Kaczmarczyk Perforation: 12½:12¾; 12¾
![[The 6th Bicycle Peace Race Warsaw - Berlin - Prague, type PB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PB-s.jpg)
![[The 6th Bicycle Peace Race Warsaw - Berlin - Prague, type PC]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PC-s.jpg)
![[The 6th Bicycle Peace Race Warsaw - Berlin - Prague, type PD]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PD-s.jpg)
17. May WM: None Sheetsize: 100 Design: L. Jagodziński, Cz. Borowczyk Perforation: 12½:12¾; 12¾
![[The European Boxing Championship in Warsaw, type PE]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PE-s.jpg)
![[The European Boxing Championship in Warsaw, type PF]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PF-s.jpg)
![[The European Boxing Championship in Warsaw, type PG]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PG-s.jpg)
22. May WM: None Sheetsize: 70 Design: B. Brandt, J.M. Szancer Engraving: B. Brandt, St. Łukaszewski Perforation: 12:12½; 11¼:11¾
![[The 480th Anniversary of the Birth of Mikolaj Kopernik in 1473, type PH]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PH-s.jpg)
![[The 480th Anniversary of the Birth of Mikolaj Kopernik in 1473, type PI]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PI-s.jpg)
15. July WM: None Sheetsize: 100 Design: B. Brandt, J. Ostrowski Engraving: B. Brandt, St. Łukaszewski Perforation: 12¾ x 12½
![[The Day of the Merchant Navy, type PJ]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PJ-s.jpg)
![[The Day of the Merchant Navy, type PK]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PK-s.jpg)
15. July WM: None Sheetsize: 100 Design: E. John Perforation: 12½ x 12¾
![[The First Anniversary of the Proclamation of the Constitution of the People's Republic of Poland on 22 July 1952, type PL]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PL-s.jpg)
![[The First Anniversary of the Proclamation of the Constitution of the People's Republic of Poland on 22 July 1952, type PM]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PM-s.jpg)
24. August WM: None Sheetsize: 100 Design: E. John, J. Ostrowski, Fangor-Tchórzewski Perforation: 12½:12¾
![[The 3rd Universal Student Congress in Warsaw, type PN]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PN-s.jpg)
![[The 3rd Universal Student Congress in Warsaw, type PO]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PO-s.jpg)
![[The 3rd Universal Student Congress in Warsaw, type PP]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/PP-s.jpg)