A little more info as I was on SGC's website gathering data for the 100's of T206's in our upcoming auction(cheap plug). SGC has graded 16 350 Sweet Caporal Plank's, 6 150 Sweet Caporal, 5 of which were AUT and 1 150 Piedmont, also AUT.
I think it may be a fair statement that a nice numerical 150 would bring a substantial premium in the market.
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