Muri Bhalissa: Singapor - Bolol tal-pustaġġ-dovut (1968 - 1997) - 2 bolol.
27. March WM: 1 Perforazzjoni: 13½
![[Postage Due Stamps - Different Perforation, Tip A8]](https://www.stampworld.com/media/catalogue/Singapore/Postage-due-stamps/A8-s.jpg)
24. August WM: 1 Perforazzjoni: 13½
![[Postage Due Stamps - Different Perforation, Tip A9]](https://www.stampworld.com/media/catalogue/Singapore/Postage-due-stamps/A9-s.jpg)
Muri Bhalissa: Singapor - Bolol tal-pustaġġ-dovut (1968 - 1997) - 2 bolol.
27. March WM: 1 Perforazzjoni: 13½
24. August WM: 1 Perforazzjoni: 13½
