Have You Seen This Before? 1964 Canadian 50 Cent All Copper

I will guess that this is actually a silver 50, that has been sitting in a bag or other sealed container with a bunch of pennies in it. I have found a ton of dimes that have been inside of penny rolls and they all look similar to this. at a first glance they look like a copper penny, but after inspection you know its just some sort of transfer.

The OP needs to weigh it, there would be significant difference between a copper planchet and the correct silver one.

the more likely would be someone gold plated this, and has been circulated, and tarnished.