Portsmouth, New Hampshire. $10 1929 Ty. 1. Fr. 1801-1. The National Mechanics & Traders Bank. Charter #401. PMG Choice Very Fine 35.A tougher offering from this Portsmouth bank that reports just 13 small size examples known (in addition to 25 large). This modestly circulated Type-1 $10 features darkly inked design elements and bright wholesome paper.