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Some dated rolls of Lincolns are exclusive to the Coin Vault and CSN. Yes the tv auctioneers. Anytime they get an opportunity to present something as "special", they are on it like flies on dung. Also b/c one of President Taylor's niece's was at the event, she may have sold and signed them. The post office opens special lines for that stuff, is my understanding.
It is hard to tell if the signature is hand-signed or stamped onto the roll. Regardless, I think the paper will eventually degrade and also impact the coins so not sure how long one would want to keep the cents in that roll anyway. TC