50 Dollars - Elizabeth II The Spoon

The "Spoon" nickname refers to the coin's unusually low gold fineness for a collector issue of this period — .500 fine was an odd commercial choice in 1978, when most Commonwealth gold commemoratives were struck at .900 or better. The Cayman Islands, operating under British oversight but with autonomous currency authority granted in 1972, issued several gold pieces through the late 1970s aimed squarely at the tourist and collector trade rather than any monetary function.

KM#47 is not a common catalog entry, and surviving populations in problem-free condition are modest.