50 Dollars - Elizabeth II Blackbuck

The blackbuck (Antilope cervicapra) is native to the Indian subcontinent, not the Pacific — its appearance on a Cook Islands issue reflects the wildlife conservation coin boom of the late 1980s, when small Pacific and Caribbean territories flooded the collector market with themed silver issues carrying face values no one ever intended to spend. Cook Islands was among the most prolific issuers, contracting production through foreign mints to generate seigniorage revenue from overseas collectors rather than domestic circulation.