Search Results for "production anomaly" - Collection

United States 1993 20 Dollars Federal Reserve Note from the New York District with Insufficient Inking Error on the reverse, PMG 67 EPQ Superb Gem Uncirculated, showing faint White House vignette and missing ink coverage

United States 1993 - 20 Dollars Federal Reserve Note New York District Insufficient Inking Error (Friedberg 2079-B)

The combination of an exceptional printing anomaly and PMG’s 67 EPQ Superb Gem Uncirculated grade makes this note an outstanding study specimen for modern U.S. error specialists. It offers a pristine example of both technical imperfection and production precision: a flawless sheet that escaped destruction despite its striking defect. The result is a note that simultaneously showcases the artistry of late 20th-century U.S. engraving and the fallibility of industrial-scale printing technology. Read more →

United StatesError Note199320 DollarsPMG 67 EPQ Superb Gem Uncirculated United StatesFederal Reserve NoteIssued NoteError NotePrinting ErrorInsufficient Inking ErrorBureau of Engraving and PrintingNew York DistrictFriedberg 2079-B1993Superb Gem UncirculatedPMG 67 EPQModern RarityUnited States Currency20 DollarsProduction Anomaly

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United States 1950A 10 Dollars Federal Reserve Note from the Chicago District with Butterfly Fold Error extending from the lower right corner, PMG 64 EPQ Choice Uncirculated, showing misprinted triangular fold pattern

United States 1950A - 10 Dollars Federal Reserve Note Chicago District Butterfly Fold Error (Friedberg 2011-G)

This 1950A 10 Dollars Federal Reserve Note from the Chicago District (Friedberg 2011-G, GB Block) displays a striking Butterfly Fold Error, one of the most visually dramatic mechanical mishaps encountered in modern U.S. currency production. During printing, a corner of the paper was unintentionally folded over, causing part of the note’s design to print on the folded flap and leaving an unprinted void once the fold was later unfolded. The result is a note with a pronounced triangular blank area extending beyond the normal border, creating the distinct 'butterfly wing' appearance that gives this error its name. Read more →

United StatesError Note195010 DollarsPMG 64 EPQ Choice Uncirculated United StatesFederal Reserve NoteIssued NoteError NoteButterfly Fold ErrorFolding ErrorPrinting ErrorBureau of Engraving and PrintingChicago DistrictFriedberg 2011-G1950A Series1950PMG 64 EPQChoice UncirculatedModern Error NoteProduction AnomalyUnited States Currency10 Dollars

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United States 1993 20 Dollars Federal Reserve Note from the Chicago District with dramatic Printed Tear Errors on both sides, PMG 64 EPQ Choice Uncirculated, showing folded and torn corners obstructing ink transfer

United States 1993 - 20 Dollars Federal Reserve Note Chicago District Printed Tear Error (Friedberg 2080-G)

Unlike routine cutting or trimming errors, which occur after printing, a true printed tear is a press-stage event: the design was never applied where the paper surface was obstructed. These notes are valued not only for their dramatic appearance but also for what they teach about BEP mechanics. The strong registration elsewhere on the note confirms that the press was otherwise calibrated, making the tear itself the sole anomaly within an otherwise perfect production cycle. Read more →

United StatesError Note199320 DollarsPMG 64 EPQ Choice Uncirculated United StatesFederal Reserve NoteIssued NoteError NotePrinting ErrorPrinted Tear ErrorFolded During PrintingBureau of Engraving and PrintingMechanical ErrorProduction AnomalyChicago DistrictFriedberg 2080-G1993 Series1993Choice UncirculatedPMG 64 EPQUnited States CurrencyModern Error Note20 Dollars

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United States 1935D 1 Dollar Silver Certificate showing Butterfly Fold Error with upper left corner folded and partially printed, PMG 58 EPQ Choice About Uncirculated, blue seal issue signed by Clark and Snyder

United States 1935D - 1 Dollar Silver Certificate Butterfly Fold Error (Friedberg 1613W, IF Block)

From a technical and educational standpoint, butterfly errors are invaluable for demonstrating how mechanical stress, humidity, and press speed interact during the intaglio process. This particular example is especially striking for its perfectly preserved fold tab extending beyond the note’s frame, showing exactly how the paper folded during production. For collectors, such notes are more than curiosities-they are tangible evidence of how human and mechanical precision occasionally diverge, producing a one-of-a-kind anomaly that transforms a common note into a specimen of industrial history. Read more →

United StatesError Note19351 DollarPMG 58 EPQ Choice About Uncirculated United StatesSilver CertificateError NoteButterfly Fold ErrorFriedberg 1613W1935D Series1935Clark–Snyder SignaturesBlue SealPMG 58 EPQChoice About UncirculatedBureau of Engraving and PrintingPrinting ErrorProduction AnomalyUnited States Currency1 Dollar

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United States 1974 1 Dollar Federal Reserve Note from the Chicago District showing Paper Jam Error at lower right margin, PMG 45 Choice Extremely Fine, with visible folded and misfed corner

United States 1974 - 1 Dollar Federal Reserve Note, Chicago District Paper Jam Error (Friedberg 1908-G, GD Block)

This 1974 1 Dollar Federal Reserve Note from the Chicago District (Friedberg 1908-G, GD Block) presents a distinct Paper Jam Error-an uncommon and revealing production mishap that occurs when the currency paper fails to feed smoothly through the intaglio press or overprint unit. The result is a wrinkled or crumpled section of paper that becomes permanently flattened into the design, often distorting part of the printed image or leaving telltale creases and folds embedded beneath the ink. Read more →

United StatesError Note19741 DollarPMG 45 Choice Extremely Fine United StatesFederal Reserve NoteIssued NoteError NotePaper Jam ErrorFriedberg 1908-GChicago District1974 Series1974Neff–Simon SignaturesPMG 45Choice Extremely FineBureau of Engraving and PrintingMechanical ErrorPrinting ErrorProduction AnomalyUnited States Currency1 Dollar

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United States Series 1969C 10 Dollars Federal Reserve Note from the Philadelphia District with overprint misalignment error affecting the green seal and serial numbers, Friedberg 2021-C, graded PMG 35 EPQ Choice Very Fine.

United States 1969C - 10 Dollars Federal Reserve Note, Philadelphia District, Overprint Misalignment Error (Friedberg 2021-C, CB Block), PMG 35 EPQ Choice Very Fine

Overprint misalignment errors occur during the final stage of currency production, when the Treasury seal and serial numbers are applied in a separate printing pass after the primary intaglio face and back impressions. A slight sheet shift during this stage results in displaced overprint elements, producing a visually dramatic offset relative to the engraved design. In this example, the misalignment is clearly visible in the green seal and serial number placement, confirming a genuine production anomaly rather than post-issue damage. Read more →

United StatesError Note196910 DollarsPMG 35 EPQ Choice Very Fine Federal Reserve NoteIssued NoteError NoteOverprint misalignment errorSmall size banknotePortrait of Alexander Hamilton10 DollarsBureau of Engraving and PrintingPhiladelphia Federal Reserve DistrictCB blockFriedberg 2021-CBanuelos and Shultz signaturesExceptional Paper Quality designationModern United States currencyUnited States printing errorFiat currency eraHistoryUnited States19691969CPMG 35 EPQChoice Very FineMuseum Grade

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United States Series 1950A 20 Dollars Federal Reserve Note from the Cleveland District with misaligned back printing error, Friedberg 2060-D, graded PMG 45 PPQ Extremely Fine.

United States 1950A - 20 Dollars Federal Reserve Note, Cleveland District, Misaligned Back Printing Error (Friedberg 2060-D), PMG 45 PPQ Extremely Fine

The Series 1950A 20 Dollars Federal Reserve Note from the Cleveland District, cataloged as Friedberg 2060-D, exhibits a documented Misaligned Back Printing Error. This production anomaly occurred during the back plate printing stage, when the reverse impression shifted relative to the front, creating visible displacement in the alignment of the reverse design elements. Read more →

United StatesError Note195020 DollarsPMG 45 PPQ Extremely Fine Federal Reserve NoteIssued NoteError NoteMisaligned back printingSmall size banknotePortrait of Andrew Jackson20 DollarsBureau of Engraving and PrintingCleveland Federal Reserve DistrictFriedberg 2060-DPremium Paper Quality designationPost-war fiat currency eraUnited States printing errorMid twentieth century United States currencyHistoryUnited States19501950APMG 45 PPQExtremely FineMuseum Grade

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