Viser nå: Singapore - Portofrimerker (1968 - 1997) - 2 frimerker.
1973
Postage Due Stamps - Different Perforation
27. March VM: 1 Perforering: 13½
![[Postage Due Stamps - Different Perforation, type A8]](https://www.stampworld.com/media/catalogue/Singapore/Postage-due-stamps/A8-s.jpg)
1973
Postage Due Stamps - Different Perforation
24. August VM: 1 Perforering: 13½
![[Postage Due Stamps - Different Perforation, type A9]](https://www.stampworld.com/media/catalogue/Singapore/Postage-due-stamps/A9-s.jpg)
