1902 Canada One Cent .

Likely from jewelry. You'll find a lot of these at flea markets.

@ Alex A


@ Smallcentguy


Anyhow ,I dipped the coin in acetone ,for the night ...
We will see tomorrow ( lacquer or plating)

Looks more like :
Numerous Planchet Cracks, Error Coin
More opinions please .

Canadian copper....anomalies....manifest themselves sometimes differently than my experience with American copper would indicate, so I'm hesitant to express firm opinion regarding this one. That said, obviously anything which is a negative on the struck coin would have to be a positive on the die, which means if this were a strike feature the die would have had to be covered by a network of raised lines strong enough to imprint themselves on the planchet.

I don't see that happening, so what's left is a postmint event of some sort. In my experience of US coinage, this is usually an artifact of extreme heat. Were it lacquer, one night's acetone soak wouldn't necessarily remove it, but I should think the weight would have been noticeably increased simply because the layer is thick enough to crack. Of course, one must also factor the weight loss involved with the hole. A little play with geometry indicates to me that the weight loss seems appropriate for the metal lost from that hole, so nothing to account for a layer of lacquer.

to me,it looks like it was nailed to a barn or something, and probably suffered 70 or 80 years of environmental damaging conditions.

I love the look of this coin :) Very cool, thanks for posting!

Well, was I ever wrong ! It's mutated to become an all-metal-boring worm and it has infested my 1960 nickel (which I actually had on my desk to post a picture on the error forum - note: marks don't go over the letters or numbers the reverse is normal).