First off, I hope I'm doing this right because I don't post a whole lot here. Anyhow, I have a 1991 Ultra Performances Joe Montana card, supposed to be card #4 in the set, but this is an error, the back of the card says Thurman Thomas and is #7, it is also printed upside down. I can't find any info on it here on the Beckett site. Just wondering if it is really rare and if anyone has any info on this card. Thanks!!
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