Here's an example of the first Silver Dollar (SD) struck for circulation by Canada; it was issued in 1935 to help celebrate the 25th anniversary of King George V's ascension to the British Throne.
The coin shown is the first Canadian SD that I ever added to my collection. (In addition to being interested in it due to its role as a commemorative coin, I also have a soft spot, in general, for well-executed portraits of King George V (KGV) - to my eyes, he is the epitome of what a King should look like!)
The majestic bearded and crown-wearing portrait of KGV on the coin's obverse was designed and engraved/sculpted by Percy Metcalfe of The Royal Mint in London. The Voyageur scene depicted on the reverse was created by Emmanual Hahn.
1935 Canada King George V Acension Commemorative Silver Dollar
If you have an interest in King George V portraits on Canadian Silver Dollars, check out: