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ToddThe botton left "stem" on the card has a very distinct hook-like feature on one side, and is blunted on the other. The drawings in Okkonen's book, and also the photos you've cited (as far as I can see) have more like a tilde-shaped stem on that side.
Also, the book and photos show the left-side "arm" of the A to be thinner than the right, whereas the card has them the same thickness, and the book/photos generally have a lot of space on the inner triangle of the A- not so on the card.
I'll keep looking, but I don't see it yet.
Todd