Australija
Dabar rodoma: Australija - Oficialūs ženklai (1913 - 1931) - 1 ženklai.
1931
Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S"
4. gegužė WM: Niekas Perforacija: 11
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", tipas H]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H-s.jpg)
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", tipas H1]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H1-s.jpg)
