Awstralja
Muri Bhalissa: Awstralja - Timbri uffiċjali (1913 - 1931) - 1 bolol.
1931
Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S"
4. May WM: Xejn Perforazzjoni: 11
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", Tip H]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H-s.jpg)
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", Tip H1]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H1-s.jpg)
