CGC doesn't break out the census on this one between US and Canadian price variants for this issue, but IYKYK -- these are super rare and I'd bet this is the highest graded.  Only 12 total on the census in general.

It might grade higher if cracked and re-submitted.  I've looked closely and can't find anything off on this book.

You probably already know but just in case: this was homaged by Dan Parent recently, and brilliantly so.  

Simply iconic and a foundational collectible for the Archie collectors out there.

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