1842 Penny.

Looks like a copper coin or disc (or anything coin-like) was squished between two tokens. One is a token from the Bank of Upper Canada. I'll have to look up what the round design on the other side is.

I think the squished "copper disc" was a penny or something having the design of a seated Britannia on it. You got the "Upper Canada side" the right way up, I can see what looks like the remnants of a shield and the ground, quite proportional on what you expect to see on British pre-decimal pennies.

Edit: The one with the round shield on it is a 1842 One Penny token from Bank of Montreal. Right now I'm confident that the Bank of Upper Canada token that was used has a denomination of One Penny, because they have similar sizes.

The round shield has been pressed over again with the back of the Upper Canada token, and it looks like a good partial squeeze (I kinda like how you can see the pineapple).

As to the coin squished, it can be anything from a George IV, William IV, or Victoria penny.

The lone "sous" on the St George side is using another token, it's called a "Habitat Token", they are issued by The Bank of Montreal, the Quebec Bank, the City Bank, and the Banque du Peuple.

Someone ruined four or five coins for this...

Edit again: Some pics I copied from C&C and coinsgb and rotated. I used random dates for the coins because they have the same design anyway.

can you see any details of the original coin as it looks like all that I can see are incuse.

Some one had too much time on his hands.
What a waste.

doug