There is no evidence that these actually came from Canada, but most of them are found here which is how they have become known by this name. In early books, these are labelled as Christensen Agate, although that category is not as well received today, however, I have listed these in the CAC category as well. I do not believe these are Christensen. Even harder still to find one, as those that do come across them keep them (me) lol Here's your lucky day! One I'm parting with only because I have a mintier one with the same colours. If you do see mint ones in this size, prices are $125-$150+, so don't snooze on this opportunity here. One large chip off the back end there, but otherwise mint. The absolute "perfect" placeholder (ie.. Mint on display side, chip covered on non display side)