1991 Canada $20 Aviation AEA Silver Dart .925 Silver Coin CCCS Certified PF67 UHC

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1991 Canada $20 Aviation AEA Silver Dart .925 Silver Coin CCCS Certified PF67 UHCThe Silver Dart was the fourth and finest of the pioneer machines constructed by Aerial Experiment Association (A.E.A.) headed by Dr. Alexander Graham Bell. It was first tested in New York State in December 1908 before being shipped to Baddeck on Cape Breton Island, Nova Scotia for further flying experiments.,br>On February 23, 1909, it first flew for over half a mile above a frozen Bras d'Or Lake, thus achieving