United States 1988A — 10 Dollars Federal Reserve Note Philadelphia District Insufficient Inking on Face Error (Friedberg 2028-C)
This 1988A 10 Dollars Federal Reserve Note from the Philadelphia District (Friedberg 2028-C, CA Block) exhibits a major Insufficient Inking Error across its face printing. The left and right '10' denomination medallions, top border inscriptions, and parts of the ornamental scrollwork show extreme fading, with many engraved lines barely visible. The green Treasury seal and serial numbers remain sharp and fully inked, confirming that the fault occurred during the black intaglio printing pass, prior to the overprint stage. ... Read more →