The Newfoundland piece looks to be a Shell Canada issued medal for Provincial flowers a bit interest but not super special sadly https://www.coinsandcanada.com/toke...le=provincial-flower-and-coats-of-arms&id=299
The token in the 8th photo is a Broas Brothers Civil War token. I hope you didn't roll that one up and cash it in!
I like the Yen. The 500 Yen is that of the 1982 - 1999 style coin. I recognize the 1 yen, 100 yen, 50 yen, 5 yen and 500 yen coins. Spent many of those during my years living in Japan. 100 yen at one time was in paper currency, a long time ago. There wasn't that much use for the 1 yen coin until the Emperor died in 89'. Right after he died, they began charging tax when purchasing items. In the very beginning, it was 1 yen tax per 100 yen spent. Last I remember, which was a long time ago, it went up to 3 yen tax per 100 yen spent. So those 1 yenners eventually became more relevant over the years. I lived in Japan from 86' to 91'. The highest the yen rate was while I was there was 186 yen to the dollar. With that rate, you can image how little 1 yen was. Like nearly half a US cent for one. Not anymore though.
The French ones are cool but unfortunately not silver (.999 nickel), and pretty common. The 500 Yen and 2 Francs (Swiss) are the most valuable coins in the pile I'd say. No numismatic value as those two are currently spendable in their nations. I used to have hundreds of the large UK pennies and sold those for an average of 25 cents a piece. They are cool as I love world coins. But that particular pile I'd keep.