Posted By:
T206CollectorDave,
You're free to use it, but it really won't augment the value of the card or its provenance. The fact that SGC has graded the card (and, of course, your feedback is good) is really all that matters at this point.
Given Hal's statement above and the fact that he's already placed his bid, you're going to do quite well, I assure you.
Paul