Philadelphia, Pennsylvania. Bank of Pennsylvania. ND (18xx). $1000. Uncirculated. Proof.(PA-480 G206 SENC) Underwood, Bald, Spencer & Huffy. India paper only. Pennsylvania Coat of Arms at top right. Medallion heads in corners. Denomination counter and title at upper left. 1000 at ends. The plate B example from the $500-$500-$1000-$1000 sheet seen in lot #1683 of the 1990 ABNC sale and last seen in our January 2011 offering of The 52 Collection. This proof is sharply executed and fully framed. Light traces of prior mounting are seen in the back bottom corners. Very rare, as we know only of the two from the 1990 sale.