Australia
Now showing: Australia - Official stamps (1913 - 1931) - 1 stamps.
1931
Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S"
4. May WM: None Perforation: 11
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", type H]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H-s.jpg)
![[Charles Kingsford Smith's World Flights - Postage Stamps Overprinted "O S", type H1]](https://www.stampworld.com/media/catalogue/Australia/Official-stamps/H1-s.jpg)
