Can anyone explain this?

Apologies if this is in the wrong section.
I have had this coin sitting in the junk drawer in my basement and never knew what too make of it. I think I found it roll searching 4 or 5 years ago. Take a look at the pictures. It seems to be a zinc penny from which the copper plating has been removed. This is not unusual to me. I have found one or two in the past. What has me scratching my head is that it seems to be on a planchet that is not a standard penny size. You can see it's slightly larger than normal. So I'm thinking maybe a wide collar error, except that it's the whole image that is larger, not just the rim. So it seems that it must have been struck with a die that was sized slightly larger. But I can't imagine such an error. Maybe it's a Chinese forgery? Does anyone have a thought on this? Also, for what it's worth, it seems to have been damaged in that it is bent slightly concave.
I have had this coin sitting in the junk drawer in my basement and never knew what too make of it. I think I found it roll searching 4 or 5 years ago. Take a look at the pictures. It seems to be a zinc penny from which the copper plating has been removed. This is not unusual to me. I have found one or two in the past. What has me scratching my head is that it seems to be on a planchet that is not a standard penny size. You can see it's slightly larger than normal. So I'm thinking maybe a wide collar error, except that it's the whole image that is larger, not just the rim. So it seems that it must have been struck with a die that was sized slightly larger. But I can't imagine such an error. Maybe it's a Chinese forgery? Does anyone have a thought on this? Also, for what it's worth, it seems to have been damaged in that it is bent slightly concave.