Philadelphia, Pennsylvania. $5 Original. Fr. 397a. The Mechanics NB. Charter #610. PMG Very Fine 25.Half of the census listings for this early Philadelphia bank are Aces. This Original Series Five is a considerably tougher type. The bank issued First Charters and Brown Backs only before going the way of the dodo in 1903. Seen with solid pen signatures and good margins. This note first sold in 2017 for about $1,000.