WOW what a great eye. I never caught that. The cancellation stops (for most of the stamp) at the edge of the picture frame. And the bottom four perfs where you do see cancellation ink, you would almost not expect to see any due to the design shapes inside the frame. What is up with that. Makes me begin to wonder about any kind of authenticity. Perhaps we are stuck on a duck

Maybe the larger strike design is a tree or something. Maybe our imaginations are not opened up enough. Thanks for that great piece of detection!