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Even tho this is an "A" version, the "B" seems to be along the same lines as to detail and finish.
Looking at the found submarine thread, it shows a photo with submarines, "E4....E52, E53" I gets ta thinkin', I wonder if the webs has a E13. Lawdy, lawdy lawdy.....
Looking like they had 8, 11,12,13. So also the 9 and 10 should be there.