Banknote Glossary
The World Banknotes Glossary is a curated system dedicated to the language of paper money. Here, the subtle elements that define a banknote — from watermark and security thread to printing techniques, materials, and design structures — are revealed with clarity and precision.
Each term opens a deeper understanding of how banknotes are created, protected, and interpreted. What may first appear as a simple detail often carries a precise function, a technical purpose, or a cultural meaning embedded within the note itself.
This glossary is designed to refine the collector’s eye — transforming observation into recognition, and recognition into knowledge. It invites you to read banknotes not only as objects of exchange, but as carefully constructed compositions shaped by history, craftsmanship, and national identity.
A
About Good (AG)
About Good (AG) is a banknote condition grade describing an extremely worn and heavily damaged note that remains barely intact but still identifiable.
About Uncirculated (AU)
About Uncirculated (AU) is a banknote condition grade describing a note that has seen minimal handling while retaining nearly all of its original structure,...
Archival Storage
Archival storage for banknotes is a preservation standard based on chemically inert materials and controlled environmental conditions, designed to protect notes from long-term physical...
B
Banknote Issue
An issue is a complete official release of banknotes defined by a unified design, issuing authority, and legal monetary framework.
Banknote Preservation
Banknote preservation refers to the principles and practices used to maintain a banknote’s physical condition, structural integrity, and long-term stability.
Banknote Storage
Banknote storage refers to the methods, materials, and systems used to safely hold, organize, and physically protect banknotes from damage.
C
Central Bank
A central bank is the primary monetary authority of a country responsible for issuing currency and maintaining trust in the financial system.
Coat of Arms
A coat of arms on a banknote is an official state symbol that represents national identity, authority, and continuity.
Commemorative Issue
A commemorative issue is a banknote released to mark a specific event, anniversary, person, or cultural milestone, extending currency into a medium of national...
Condition Grading
Condition grading is the standardized system used to evaluate the physical state of a banknote and define its position within the global collector market.
Cutting Error
A cutting error is a banknote production error where the note is improperly cut from the printed sheet, resulting in misaligned margins or incomplete...
D
Demonetized Note
A demonetized note is a banknote that has been officially withdrawn from circulation and no longer holds legal tender status.
Denomination
Denomination on a banknote is the value assigned to it, expressed through numbers, words, or symbols that define its place within a currency system.
Double Print
A double print is a banknote printing error where part of the design is printed twice, creating a duplicated image within the same layer.
E
Emblem
An emblem on a banknote is a symbolic graphic element used to represent a nation, institution, or issuing authority.
Emergency Money (Notgeld)
Emergency money (Notgeld) refers to banknotes issued outside the official monetary system during periods of economic disruption, when standard currency was unavailable or insufficient.
Essay
An essay is a proposed banknote design submitted for consideration that was not approved for production or circulation.
Extremely Fine (XF)
Extremely Fine (XF) is a banknote condition grade describing a note that has seen light circulation yet remains structurally strong and visually sharp.
F
Fancy Serial Number
A fancy serial number is a banknote serial number distinguished by a recognizable and collectible pattern.
Fine (F)
Fine (F) is a banknote condition grade describing a note that has been in circulation for an extended period and shows clear, heavy signs...
Fluorescent Fibers
Fluorescent fibers are microscopic threads embedded within the substrate of a banknote that become visible under ultraviolet light.
Fold-over Error
A fold-over error is a banknote printing mistake in which part of the note is physically folded during production, causing sections of the design...
G
Good (G)
Good (G) is a banknote condition grade for a heavily circulated note that remains complete but shows major wear and structural weakness.
Guilloche Pattern
Guilloche pattern is a banknote design element composed of finely engraved, interwoven lines forming complex geometric structures that are extremely difficult to replicate.
Gutter Fold Error
A gutter fold error is a banknote printing mistake caused by a crease or fold in the paper sheet during production, resulting in a...
H
Hologram
Hologram is an optical security feature applied to a banknote that uses light diffraction to produce controlled changes in image, colour, and spatial depth...
Hybrid Substrate
A hybrid substrate is a composite banknote material that combines traditional paper fibers with polymer elements, forming a multi-layer structure designed to enhance durability,...
Hyperinflation Issue
A hyperinflation issue refers to banknotes produced during a period of extreme monetary collapse, when currency rapidly loses value and ever-higher denominations are introduced...
I
Intaglio Printing
Intaglio printing is a banknote printing technique in which ink is transferred from engraved recesses under extreme pressure, creating a raised image that can...
Inverted Overprint
An inverted overprint is a banknote error where an additional printed element applied after the original design appears upside down relative to the base...
Issuing Authority
Issuing authority is the institution legally empowered to produce and release a banknote into circulation within a defined monetary system.
L
Legal Tender
Legal tender refers to money that is officially recognized by law as valid for settling debts within a defined legal tender framework.
Low Serial Number
A low serial number refers to a banknote whose serial number falls at the very beginning of a production sequence, typically within the earliest...
M
Microprinting
Microprinting is a high-precision security feature on a banknote consisting of extremely small text or patterned elements that remain sharp and legible only under...
Military Issue
A military issue is a banknote or monetary instrument created specifically for use by armed forces within controlled environments, often outside the standard civilian...
Mismatch Serial Numbers
Mismatch serial numbers refer to a banknote where the serial numbers printed on the same note do not match each other.
Missing Print
A missing print is a banknote error where part of the design is absent due to a failure in one stage of the printing...
O
Obverse
The obverse is the primary side of a banknote that presents the official identity of the issuing authority within the legal tender framework.
Occupation Issue
An occupation issue is a banknote introduced by a foreign power to replace or control the local currency within a territory under military or...
Optically Variable Device (OVD)
An optically variable device (OVD) is a security feature on a banknote that changes appearance when viewed from different angles, using light interference, diffraction,...
Optically Variable Ink (OVI)
Optically Variable Ink (OVI) is a security feature on a banknote consisting of specialized color-shifting ink that changes appearance when viewed at different angles...
Overprint
Overprint is an additional layer of text, symbols, or markings printed onto an existing banknote after its original production.
P
PCGS Banknote Grading
PCGS Banknote Grading is a professional third-party certification system that evaluates the authenticity, condition, and overall quality of banknotes.
Pick Number
Pick Number (P-#) is a standardized catalog reference used to identify and classify banknotes within the Standard Catalog of World Paper Money (SCWPM).
Pinholes
Pinholes are small perforations in a banknote caused by physical puncturing, typically from pins or needles used during handling or storage.
PMG Banknote Grading
PMG Banknote Grading is a professional third-party certification system that evaluates the authenticity, condition, and overall quality of banknotes.
Polymer
Polymer is a modern banknote substrate made from durable plastic film, most commonly biaxially oriented polypropylene (BOPP), used to enhance durability, security, and resistance...
Poor (PR)
Poor (PR 1 on the 1–70 grading scale) is the lowest possible banknote condition grade, describing a note that is severely damaged, structurally compromised,...
Portrait
Portrait on a banknote is a visual representation of a person, typically a historical figure, national leader, or cultural icon, used to establish identity,...
Prefix
Prefix on a banknote is the initial letter or group of letters at the beginning of the serial number, used to classify a note...
Pressed Note
A pressed note is a banknote that has been mechanically flattened to reduce or hide folds, creases, and handling marks.
Printing Errors
Printing errors on a banknote are unintended deviations that occur during the official production process, resulting in notes that differ from the intended design.
Proof Note
A proof note is a banknote produced during the design and approval stage to test engraving, layout, and printing quality before full production.
R
Remainder Note
A remainder note is a fully printed banknote that was never issued into circulation and remained unused after production.
Replacement Prefix
A replacement prefix is a serial numbering feature used to identify a banknote issued as a substitute for a defective note removed during production.
Reverse
The reverse is the secondary side of a banknote that presents the cultural, historical, or thematic narrative within the monetary system.
S
SCWPM
SCWPM (Standard Catalog of World Paper Money) is the global reference catalog used to identify and classify banknotes, providing the standardized Pick Number system...
Seal
A seal on a banknote is an official emblem of the issuing authority that serves both as a mark of institutional identity and a...
Security Fibers
Security fibers are microscopic or short colored threads embedded directly into the substrate of a banknote during papermaking, forming an internal anti-counterfeiting feature that...
Security Thread
A security thread is a thin strip embedded within the substrate of a banknote during production, forming a continuous internal feature that confirms authenticity...
Serial Number
A serial number on a banknote is a unique alphanumeric identifier assigned to each note during production, allowing it to be distinguished from every...
Series
A series on a banknote refers to a specific production grouping within an issue, defined by consistent design, signature combinations, dates, prefixes, or other...
Signature
A signature on a banknote is the printed authorization of an official acting on behalf of the issuing authority, linking the note to a...
Sleeves
Sleeves are transparent protective holders used to store and handle banknotes without direct contact, preserving their surface, structure, and original condition.
Specimen Note
A specimen note is a banknote produced as an official reference sample that was never intended for circulation or monetary use.
Substrate
Substrate on a banknote refers to the base material from which the note is made, forming the physical foundation for all printed designs and...
Suffix
Suffix on a banknote is the final letter or group of letters within the serial number, appearing at the end of the sequence and...
T
TBB Number
TBB Number is a catalog reference used to identify banknotes within The Banknote Book, a modern classification system developed by Owen Linzmayer to provide...
Transparent Window
A transparent window (also known as a clear window) is a security feature in a banknote where part of the substrate remains fully transparent,...
U
Ultraviolet (UV) Features
Ultraviolet (UV) features are security elements on banknotes that become visible only under ultraviolet light, revealing patterns, fibers, serial numbers, or symbols that remain...
Uncirculated (UNC)
Uncirculated (UNC) is a banknote condition grade describing a note that has never entered circulation and retains its original state as issued.
Underprint
Underprint on a banknote is the foundational background layer of printed patterns, colors, and fine structures applied before the main design elements.
V
Variety
A variety refers to a distinct variation within the same banknote type, where the core design remains unchanged but specific details differ between printings.
Very Fine (VF)
Very Fine (VF) is a banknote condition grade describing a note that has seen clear and repeated circulation, yet remains complete, stable, and fully...
Very Good (VG)
Very Good (VG) is a banknote condition grade describing a heavily circulated note with substantial wear, softened structure, and clear signs of long-term use,...
Vignette
Vignette on a banknote is a detailed illustrative scene or compositional image depicting landscapes, architecture, historical events, or symbolic narratives.
W
Washed Note
A washed note is a banknote that has been chemically or mechanically cleaned to remove dirt, stains, or signs of circulation.
Watermark
Watermark is one of the most trusted and enduring security features in banknotes, embedded directly within the paper and revealed only when held against...
Wrong Back
A wrong back (also known as a mismatched back or double denomination note) is a banknote printing error in which the obverse and reverse...