10 Dollars Small-Size National Bank Note

Saltsburg, a small borough in Indiana County, Pennsylvania, had only one bank — and by 1929 it was among the last generation of institutions still exercising the right to issue currency under the National Bank Act. The small-size national note format had been standardized in 1929 precisely to cut the federal government's printing costs, replacing the large-size "horse blanket" notes that had dominated since the Civil War era.

What makes notes from minor Pennsylvania boroughs genuinely collectible is sheer arithmetic: charter populations were tiny, note issuance was proportionally small, and most circulated hard until redemption. Saltsburg's First National issued in both Type 1 and Type 2 variants — Type 2 notes carry the individual serial number on the back as well, making them distinguishable without flipping.