Canada tried to produce a silver dollar in 1911. Due to changes in the political winds of the day, only two lead and one silver trial pieces were actually struck. This has lead to one of the world's rarest, and many believe, under valued coins in the world. Canada did not release a silver dollar into circulation until 1935 to commemorate the 25th Anniversary of the reign of King George V. Due to the war years, no new dies were struck until 1945. Low demand during the later 1940's has created a number of pieces that have strong collectible values.