These aren;t technically "coins", despite being labelled such on the folders. They are privately-issued souvenir tokens.
The 1970s and 1980s were the heyday of these tourist dollars. Thousands of them were issued, from places all over Canada. There are people hat collect them, but as they aren't "real coins", their collectors are not as numerous as mainstream coin collectors. Individually, they typically sell for a few dollars each. I don't think the folder adds any extra value.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis