Collection

United States 1996 — 100 Dollars Federal Reserve Note, Chicago District (Friedberg 2175-G) Insufficient Inking Error, PMG 66 EPQ Gem Uncirculated

This 1996 100 Dollars Federal Reserve Note from the Chicago District (Friedberg 2175-G, AGB Block) presents one of the most striking examples of an Insufficient Inking Error recorded on a modern U.S. high-denomination note. The entire reverse is drastically under-inked: the normally bold depiction of Independence Hall appears as a pale, incomplete impression, with architectural outlines faintly visible but lacking depth and saturation. ... Read more →

United States 1996 — 50 Dollars Federal Reserve Note, Chicago District (Friedberg 2126-G) Insufficient Inking Error, PMG 65 EPQ Gem Uncirculated

This 1996 50 Dollars Federal Reserve Note from the Chicago District (Friedberg 2126-G, AGB Block) demonstrates a dramatic Insufficient Inking Error affecting the left side of the obverse. The portrait of Ulysses S. Grant remains fully defined, yet the surrounding text, borders, and background show substantial ink loss, fading into near blankness. ... Read more →

United States 1993 — 20 Dollars Federal Reserve Note, New York District (Friedberg 2079-B) Insufficient Inking Error, PMG 67 EPQ Superb Gem Uncirculated

This 1993 20 Dollars Federal Reserve Note from the New York District (Friedberg 2079-B, BD Block) is a superbly preserved example of an Insufficient Inking Error that drastically weakens the reverse printing. The normally dark green depiction of the White House appears faint and washed out, with many architectural and background details missing. Only fragments of the design—such as the central columns, the inscription 'UNITED STATES OF AMERICA', and the denomination numerals—remain clearly visible. ... Read more →

United States 1988A — 10 Dollars Federal Reserve Note, Philadelphia District (Friedberg 2028-C) Insufficient Inking on Face Error, PMG 64 EPQ Choice Uncirculated

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 →

United States 1995 — 5 Dollars Federal Reserve Note, Los Angeles District (Friedberg 1985-L) Insufficient Inking on Face Error, PCGS 58 PPQ Choice About New

A dramatic production flaw on this 1995 5 Dollars Federal Reserve Note from the Los Angeles District (Friedberg 1985-L, L Block) reveals an Intaglio Insufficient Inking Error — a condition in which portions of the face plate failed to receive adequate ink during printing. The result is a visibly faded or incomplete impression across the left side of the note, most noticeable in the top and bottom '5' corner medallions and border scrollwork. The green Treasury seal and serial numbers remain fully struck, confirming that the error occurred during the black intaglio face pass, prior to the overprint stage. ... Read more →

United States 1985 — 5 Dollars Federal Reserve Note, Cleveland District (Friedberg 1978-D) Insufficient Inking on Back Error, PMG 64 EPQ Choice Uncirculated

A visually striking Insufficient Inking Error on this 1985 5 Dollars Federal Reserve Note from the Cleveland District (Friedberg 1978-D, DB Block) leaves nearly two-thirds of the reverse design ghosted or missing. The left portion of the intaglio printing—normally displaying the numeral '5,' frame ornamentation, and portions of the Lincoln Memorial vignette—shows only a faint outline where the press failed to transfer adequate ink to the paper. This form of printing error occurs when the intaglio press cylinder is inadequately charged with ink before an impression cycle. ... Read more →

United States 1988A — 1 Dollar Federal Reserve Note, Chicago District (Friedberg 1915-G) Insufficient Inking Error, PMG 64 EPQ Choice Uncirculated

This 1988A 1 Dollar Federal Reserve Note from the Chicago District (Friedberg 1915-G, GE Block) displays a dramatic Insufficient Inking Error that left much of the upper design on the obverse faint or missing. The portrait of George Washington remains clear and fully struck, but the border engraving, serial zone, and areas above the central vignette show patchy or absent ink transfer. This occurred during the intaglio face printing pass when the plate failed to receive an even ink layer or when the wiping cylinder overcleaned the plate prior to impression. ... Read more →