50 Rupees

The Cocos (Keeling) Islands used a rupee-denominated currency from 1977 until 1994, when the Australian dollar was formally adopted as sole legal tender — ending a monetary arrangement that had its roots in the plantation economy run by the Clunies-Ross family, who effectively controlled the atoll as a private fiefdom for over a century. This 2023 issue is a commemorative anachronism, reviving a denomination that has had no transactional use for three decades.