Posted By:
MarkMatt:
Congrats on winning this one. I found it one of the more intriguing items offered recently. I would not soak it, myself. In addition to potentially compromising the card, I would much prefer to leave it as-is.
The fact that this is just how it came from the Johnson family, should be preserved IMO. As you state, there is great value in owning WoJo's personal example (exactly as it is).
Sorry I can't help with the "Blank back" answer... but bet there are more knowledgeable card guys who can help you in a pinch (unless they're all currently in Chicago...)