Muri Bhalissa: Ċekoslovakkja - Bolol tal-posta (1918 - 1992) - 1 bolol.
6. October WM: Xejn Perforazzjoni: 12½
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Ikklikkja hawn taħt biex tipprova wkoll tfittxija avvanzata tagħna:
![[International Labour Bureau - Overprinted "B.I.T. 1937", Tip YDL]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/YDL-s.jpg)
![[International Labour Bureau - Overprinted "B.I.T. 1937", Tip YDL1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/YDL1-s.jpg)
![[International Labour Bureau - Overprinted "B.I.T. 1937", Tip YDL2]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/YDL2-s.jpg)
