BY MATT TUCK The results are in, and CBCS has graded and slabbed my Fantastic Four #48. Did the Stan Lee signature get verified by Beckett Media? What was the final grade? It is time for the big reveal. THE STORY SO FAR Back on March 15, I boxed up one of my long-awaited eBay finds: an affordable copy of Fantastic Four #48.  The real gamble was that it had an unwitnessed Stan Lee signature on the cover. I have been to Stan Lee signings before, and I have owned several witnessed signatures of his over the years. Right now,...