Issued by Christmas Island (Australia) in 1977, this commemorative 45-cent stamp celebrates the Silver Jubilee of Queen Elizabeth II, marking the 25th anniversary of her reign. The design features the Australian coat of arms supported by a kangaroo and emu, placed over a map of Christmas Island in the Indian Ocean. At the right side appears a silver portrait silhouette of the Queen with the inscription “Silver Jubilee 1977.” This issue reflects the island’s political connection to Australia and the British Crown. For collectors, it represents a notable Commonwealth jubilee issue from a remote but historically interesting postal territory.