This 50-cent Australian stamp features the Leadbeater’s Possum (Gymnobelideus leadbeateri), a small, nocturnal marsupial native to the forests of Victoria. The design portrays the possum perched alertly on a branch, rendered in fine naturalistic detail to emphasize its delicate fur and large eyes. Issued as part of the “Endangered Species” series, this stamp highlights Australia’s commitment to wildlife conservation, particularly for species facing habitat loss in mountain ash forests. It remains a favorite among collectors of fauna and environmental themes.