The 200th Anniversary of the Introduction of the Four-year Sejm (1788-1792) 1988
Now showing: Poland - Postage stamps - 1988 - The 200th Anniversary of the Introduction of the Four-year Sejm (1788-1792) - 1 stamps.
1988
The 200th Anniversary of the Introduction of the Four-year Sejm (1788-1792)
16. October WM: None Sheetsize: 35 Design: A. Heidrich Engraving: PWPW. Perforation: 11
![[The 200th Anniversary of the Introduction of the Four-year Sejm (1788-1792), type CZB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/CZB-s.jpg)