Belgium 1979 - 5 Fr. in a block of 4, where the two bottom stamps are much larger due to a serious misperforation. - OBP 1960
Belgium 1997 - 7 Fr. 'Yellow Wagtail' in a vertical strip of 5 with spectacularly shifted alignment - beautiful - OBP 2725
Belgium 1930 - A rare combination like the PUc4, but to the left of the intermediate panel seal instead of pub.
Belgium 1938 - 75 ct 'Telefunken' as pub combination of crossed lines in combination B, with bladboord on the right - OBP: PUc 142A type B
Belgium 1938 - 75ct "Unifil" as pub combination with crisscrossed lines in combination B, with bladboord on the - OBP: PUc 141A type B