2021 $5 Fraser's Dolphin 1oz Silver High Relief Proof CoinThe Frasers Dolphin was only officially discovered in 1956 after Francis Fraser identified the species from a mislabelled skeleton in the British Museum. Social in nature, the Frasers Dolphin is known to travel in pods of up to 1,000 and is noted for its high spirited and playful swimming style. This striking high relief silver coin captures two Frasers Dolphins as they leap joyfully from the water.