The diplomatic offical term for Canadian error coins is "varieties," but they're really the result of Mint errors. Some happen. This coin, which I found last evening in my extreme penny-roll searching, is a 1968 Curved Clip Planchet Variety. They come from the sheets being misaligned when fed into the puncher during blanking: either a little too forward or a little too back. The Canadian Error Coins website has a page on them here, and a walk-through page of Royal Canadian Mint procedure and related errors here. And here's the coin: A little banged-up, showing its age, but it's got that curved clip. And I found it in the wild, out of store rolls!
It's similar to one that I found about a year ago, except that mine had a tiny second clip. Yours looks like it might too at 9:30 on the reverse. Not to steal your thread or anything, but here's mine; The clips are at 9:00 and 11:00.
Roll searching. Also from a store. For some reason, most of my good finds come from store rolls, not the boxes.
They and a lot of my other coins have been posted so many times, I'm sure some members are sick of seeing them. If you check out my threads, you'll see my errors and paper money collections.
You're right , I should have read your post more carefully. I still don't see anything at 9:30. Not saying there's nothing there, your eyes might be better than mine.