This 45c Australian stamp from 1992 features the Long-Tailed Dunnart (Sminthopsis longicaudata), one of the continent’s rare small marsupials. Issued as part of Australia’s “Threatened Species” series, it highlights national conservation concerns during the early 1990s. The artwork captures the dunnart’s characteristic elongated tail and delicate desert habitat, rendered in soft, naturalistic tones. Printed using high-quality multicolour offset, the stamp is well-regarded for its ecological theme and remains a favourite among wildlife and environmental topical collectors. Light postal markings are typical on circulated examples from this period.