You are welcome. There are also varieties of silver dollars from various years as well.
1950, 1951, 1952, 1953, 1954, the 1955 Arnprior + Arnprior with die break, 1957, 1965 all have significant variations. I would suggest getting a Charlton catalogue from a bookstore or library, or find a trustworthy dealer or collector.
If you are around Toronto there is a major show this weekend, Torex- you should be able to get lots of help there.
Fenian