John:
If neither Chuck nor Dean know what the letter B designates then there is a good chance you may never get hard evidence. I was grasping at straws hoping we could find something, it seemed plausible. I would suggest that if you are really interested you join the PGCA and order a research letter. If you want to post pictures go to the homepage, then go to the FAQs and scroll down to the bottom, instructions can be found there. It is not that difficult. Best of luck to you.
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