Coverage audit

Records by confidence level

Well documented

40

Verified

2

Documented

71

Defined scopes

Each scope is a bounded claim that can be audited — not a claim about the world's collectibles as a whole.

Open research queue

• United Kingdom — George V — Bronze PennyCatalogue numbers (Spink, Krause) not yet transcribed from a verified print edition.
• United Kingdom — George V — Bronze PennyYear-by-year mintage table not yet sourced.
• Weimar Republic — Reichsbanknote — 100,000 Mark — 1923Pick number and full variety list pending verification against a print edition of the Standard Catalog of World Paper Money.
• Weimar Republic — Reichsbanknote — 100,000 Mark — 1923Exact dimensions pending an institutional measurement record.
• Great Britain — Penny Black — 1840Per-plate diagnostics not yet transcribed from a specialist plating study.
• Roman Empire — Trajan — Silver DenariusIndividual RIC numbers are not recorded here; each reverse type requires its own verified entry.
• Swiss Lever EscapementDiagrams and period technical illustrations still to be sourced under a reusable licence.
• Seahorse high value stampsPrinter-by-printer distinguishing features require a specialist reference
• Seahorse high value stampsCatalogue numbers await transcription
• Verge EscapementEarliest securely dated surviving examples still to be cited from an institutional collection record.
• American Waltham Watch Company — Model 1857 Pocket Watch MovementSerial-number-to-year table pending transcription from a verified published source.
• American Waltham Watch Company — Model 1857 Pocket Watch MovementFull list of grades within the model pending verification.
• Omega Speedmaster — Chronograph WristwatchPer-reference production dates and calibre assignments pending verification from manufacturer archive records.
• Austro-Hungarian Empire — 1 Corona — SilverWeight, fineness and diameter pending verification from a mint or museum record.
• Austro-Hungarian Empire — 1 Corona — SilverYear-by-year issue list not yet compiled.
• France — Semeuse (Sower) Definitive SeriesCatalogue numbers, colours and denominations pending transcription from verified catalogue editions.
• United States — Silver Certificate — 1 Dollar — Series 1935Friedberg numbers and the full signature-combination table pending transcription from a verified reference.
• Athenian Owl TetradrachmWeight standard and diameter ranges to be transcribed from a standard reference
• Athenian Owl TetradrachmSeries subdivisions (archaic, mass, pi-style) to be recorded with catalogue citations
• Roman Republican DenariusWeight standard changes across the series require transcription from a standard reference
• Roman Republican DenariusCrawford numbers not yet transcribed from a verified edition
• Byzantine Gold SolidusWeight and fineness figures to be transcribed from a verified reference
• Byzantine Gold SolidusReign-by-reign subdivisions still to be catalogued
• United States Morgan DollarExact weight, fineness and diameter to be transcribed from a verified catalogue
• United States Morgan DollarMint mark inventory by year to be compiled from a standard reference
• United States Lincoln Wheat CentWartime alloy composition and dates to be confirmed from a verified catalogue
• United States Lincoln Wheat CentMint mark and date inventory not yet transcribed
• United States Buffalo NickelComposition, weight and diameter to be transcribed from a verified catalogue
• United States Buffalo NickelFull date and mint mark inventory still required
• United States Mercury DimeWeight, fineness and diameter to be transcribed from a verified catalogue
• United States Mercury DimeDate and mint mark inventory still required
• Machin definitive seriesCatalogue numbers for individual values and printings must be transcribed from a verified edition
• Machin definitive seriesPhosphor band and gum varieties need a specialist reference
• British Gold SovereignWeight and fineness figures to be transcribed from a verified reference
• British Gold SovereignBranch mint inventory and operating dates to be sourced
• British Godless Florin, 1849Weight and diameter to be transcribed from a verified catalogue
• British Godless Florin, 1849Obverse legend variants to be recorded with citations
• Spanish Colonial Eight RealesWeight and fineness standards by period to be transcribed from a verified reference
• Spanish Colonial Eight RealesMint mark table to be compiled from a documented source
• Maria Theresa ThalerWeight and fineness to be transcribed from a verified reference
• Maria Theresa ThalerList of striking mints and their distinguishing details to be sourced
• German Empire 20 Mark Gold CoinWeight and fineness to be transcribed from a verified reference
• German Empire 20 Mark Gold CoinMint letter table and state-by-state issue list to be compiled
• Japanese One Yen Silver CoinWeight and fineness to be transcribed from a verified reference
• Japanese One Yen Silver CoinEra-year to Gregorian conversion table to be recorded per issue
• French 20 Francs Gold CoinWeight and fineness to be transcribed from a verified reference
• French 20 Francs Gold CoinType-by-type list with mint marks to be compiled
• Swiss 20 Francs VreneliWeight and fineness to be transcribed from a verified reference
• Swiss 20 Francs VreneliMintage years and quantities to be sourced
• British Penny RedPlate numbers and printing periods to be transcribed from a verified specialist catalogue
• British Penny RedCatalogue numbers not yet transcribed from a verified edition
• British Two Pence Blue, 1840Plate details and printing dates to be transcribed from a verified specialist catalogue
• British Two Pence Blue, 1840Catalogue numbers not yet transcribed
• United States Inverted Jenny, 1918Catalogue numbers to be transcribed from a verified edition
• United States Inverted Jenny, 1918Recorded census details to be cited to a documented source
• United States First Issue, 1847Catalogue numbers to be transcribed from a verified edition
• United States First Issue, 1847Printing and reprint distinctions to be recorded with citations
• French Ceres Issue, 1849Denomination list and issue dates to be transcribed from a verified catalogue
• French Ceres Issue, 1849Yvert, Scott and Michel numbers to be transcribed and any conflicts recorded
• Basel Dove, 1845Catalogue numbers to be transcribed from a verified edition
• Basel Dove, 1845Printing quantities to be cited to a documented source
• Bank of England White Five Pound NoteExact dimensions and withdrawal date to be transcribed from a verified reference
• Bank of England White Five Pound NoteChief Cashier signature table to be compiled from a documented source
• Zimbabwe 100 Trillion Dollar Note, 2008Pick catalogue number to be transcribed from a verified edition
• Zimbabwe 100 Trillion Dollar Note, 2008Issue and demonetisation dates to be cited to a documented source
• Hungarian B.-Pengo Notes, 1946Denomination list and Pick numbers to be transcribed from a verified edition
• Hungarian B.-Pengo Notes, 1946Issue dates per denomination to be sourced
• Yugoslav Hyperinflation Dinar Notes, 1993–1994Series list, highest denominations and Pick numbers to be transcribed from a verified edition
• Yugoslav Hyperinflation Dinar Notes, 1993–1994Redenomination dates to be cited to a documented source
• German NotgeldStandard reference numbering to be transcribed from a verified edition
• German NotgeldDistinction between circulating and collector series to be documented per issuer
• United States Two Dollar Federal Reserve Note, Series 1976Pick and standard United States catalogue numbers to be transcribed from a verified edition
• United States Two Dollar Federal Reserve Note, Series 1976District and star note inventory to be compiled
• Cartwheel penny, 1797Exact weight and diameter to be transcribed from a printed standard catalogue
• Cartwheel penny, 1797Die varieties and their catalogue numbers require a verified reference
• Maundy money setDenomination weights and finenesses by reign require transcription
• Maundy money setAttendance-year mintage figures need a verified source
• Penny, 1933Recorded number struck differs between sources and must be resolved against a Tier 1 reference
• Penny, 1933Provenance of individually known examples requires documentation
• Bronze farthingDate-by-date mintages require transcription from a printed catalogue
• Bronze farthingObverse portrait varieties by reign need verification
• Bank of England ten shilling noteSeries letters, signature varieties and dates require a verified Pick listing
• Bank of England ten shilling notePrinting figures need a Tier 1 source
• Kangaroo and map seriesWatermark types and catalogue numbers require transcription
• Kangaroo and map seriesDenomination list by printing needs verification
• Flowing Hair dollarMintage figures and die marriages require transcription from a verified reference
• Flowing Hair dollarWeight standard changes across the two years need sourcing
• Saint-Gaudens double eagleHigh relief and low relief distinctions require documentation from a standard catalogue
• Saint-Gaudens double eagleDate and mintmark mintages await transcription
• Indian Head centComposition change date and alloy details need transcription
• Indian Head centKey dates and mintages require a verified catalogue
• Standing Liberty quarterDesign type boundaries and their dates require a verified reference
• Standing Liberty quarterMintage table awaits transcription
• Educational Series silver certificateSignature combinations and serial ranges require a verified Pick or Friedberg listing
• Educational Series silver certificatePrint quantities need a Tier 1 source
• Large size legal tender noteSeries, seal colour and signature varieties require transcription
• Large size legal tender noteDenomination list by series needs verification
• Columbian Exposition issuePer-denomination catalogue numbers and quantities issued require transcription
• Columbian Exposition issueColour shade varieties need a specialist reference
• First United States airmail issueCatalogue numbers and printing quantities await transcription
• First United States airmail issuePlate number blocks and positions need a specialist reference
• Napoleon 20 francsWeight, fineness and diameter require transcription from a printed catalogue
• Napoleon 20 francsType list by regime needs verification
• AssignatDenomination and issue date list requires a verified reference
• AssignatDistinguishing features of contemporary forgeries need sourcing
• Merson type high valuesCatalogue numbers, shades and paper types await transcription
• Merson type high valuesPrinting period boundaries need verification
• German Empire 1 markWeight and fineness require transcription
• German Empire 1 markMint letter list and mintages need verification
• Rentenmark noteDenomination list and issue dates await a verified Pick listing
• Rentenmark noteConversion rate documentation should come from a central bank source
• Germania definitive seriesWatermark and printing varieties require a specialist catalogue
• Germania definitive seriesMichel numbers await transcription
• Imperial silver roubleWeight and fineness by period require transcription
• Imperial silver roubleMint marks and their attribution need a verified reference
• State credit noteDenomination and series list requires a verified Pick listing
• State credit noteSignature varieties need documentation
• Austrian 20 kreuzerStandards and weights by period require transcription
• Austrian 20 kreuzerMint mark list needs verification
• Kingdom of Italy silver liraDenomination, weight and fineness table awaits transcription
• Kingdom of Italy silver liraReign-by-reign type list needs verification
• Papal States scudoStandards varied by period and mint and require a verified reference
• Papal States scudoPapal reign attribution needs sourcing
• Canadian silver dollarWeight and fineness require transcription
• Canadian silver dollarCommemorative reverse list by year needs verification
• Canadian large centMintage figures and date rarities await transcription
• Canadian large centObverse portrait varieties need a verified reference
• Holey dollar and dumpNumber produced and surviving census figures require a Tier 1 source
• Holey dollar and dumpCounterstamp varieties need documentation
• Commonwealth of Australia pennyMint mark list and date mintages await transcription
• Commonwealth of Australia pennyKey date attribution needs a verified catalogue
• New Zealand crown, 1935Recorded mintage requires a Tier 1 source
• New Zealand crown, 1935Proof and circulation strike distinctions need documentation
• British India rupeeWeight and fineness require transcription
• British India rupeeMint identification marks need a verified reference
• Scinde DawkCatalogue numbers and recorded quantities require a specialist reference
• Scinde DawkImpression types need verification against a Tier 1 source
• Three penny beaverCatalogue numbers, papers and printings await transcription
• Three penny beaverRecorded quantity issued needs a Tier 1 source
• Qing cash coinMint and reign attribution requires a specialist reference
• Qing cash coinWeight standards by period need verification
• Japanese mon coinVariety classification requires a specialist Japanese reference
• Japanese mon coinWeight and diameter ranges need transcription
• Mexican peso, caballito typeWeight and fineness require transcription
• Mexican peso, caballito typeDate mintages need a verified catalogue
• Bull's Eye issueCatalogue numbers and printing quantities require transcription
• Bull's Eye issuePlate reconstruction details need a specialist source
• Ottoman kurusAccession-year dating conventions require explanation from a verified source
• Ottoman kurusWeight standards by reign await transcription
• Netherlands silver guilderWeight and fineness changes require transcription
• Netherlands silver guilderMint privy marks need a verified reference
• Greek silver drachma coinage (Kingdom of Greece)Weights, finenesses and mint attributions require transcription from a verified standard catalogue
• Greek silver drachma coinage (Kingdom of Greece)Reign-by-reign date ranges need confirmation
• Portuguese gold coinage of the monarchyDenomination list, weights and finenesses require transcription from a printed reference
• Portuguese gold coinage of the monarchyMint marks not yet verified
• Spanish 5 pesetas silver, Alfonso XIIIExact date range, star-dated mint years and assayer initials require verification from a standard catalogue
• Swedish 2 kronor silverWeight, fineness and the list of commemorative types require transcription from a verified catalogue
• Danish 2 kroner silverMint marks (heart symbol) and moneyer initials require confirmation from a printed reference
• Norwegian 2 kroner silverCommemorative type list and specifications need transcription from a standard catalogue
• Polish zloty coinage of the 1924 reformDenomination list, metals and mint attributions require verification from a printed catalogue
• Republic of China silver dollarType list, portrait varieties and provincial mint attributions require transcription from a specialist reference
• Republic of China silver dollarExtensive contemporary and modern counterfeits exist; diagnostic details not yet documented here
• Korean cast cash coinage (Joseon)Mint and series identification requires a specialist reference
• Korean cast cash coinage (Joseon)Date ranges for individual series not yet established
• South African Union five shillingsDesign type list by reign and weight/fineness need transcription from a verified catalogue
• South African bilingual definitive stampsIssue dates, printers and perforation data require transcription from a standard catalogue
• Argentine silver peso (Patacon)Mintage figures, exact date range and die varieties require verification from a printed reference
• Peruvian silver solWeight and fineness, assayer initials and the full date range require transcription from a standard catalogue
• Belgian 5 francs silverFrench- and Dutch-legend variants and their date ranges need verification from a printed catalogue
• Irish Free State coinage (Barnyard series)Denomination-by-denomination weights, metals and date ranges require transcription from a verified catalogue
• First coinage of the State of IsraelDenominations, metals and the precise sequence of issues need verification from a standard catalogue
• National Bank of Egypt banknotesSeries list, signature varieties and printers require transcription from a standard catalogue
• Persian silver kran (Qajar)Mint names, dates in the Islamic calendar and their Gregorian equivalents require verification
• Persian silver kran (Qajar)Weight standards over time not yet documented
• Siamese bullet money (Pot Duang)Mark identification, weight standards and dating require a specialist reference
• British Hong Kong colonial coinageDenomination list, mint attributions and reign-by-reign designs require transcription from a printed reference
• Straits Settlements dollarWeight changes across the series and date ranges require verification from a standard catalogue
• Confederate States treasury notesSeries and type numbering requires transcription from a specialist reference
• Confederate States treasury notesDiagnostics separating original notes from period facsimiles are not yet documented here
• Confederate States general issue stampsIssue dates, printers and design list require transcription from a standard catalogue
• Confederate States general issue stampsReprints and forgeries are numerous; diagnostics not yet recorded
• British colonial American paper currencyColony-by-colony issue lists, dates and signers require transcription from a specialist reference
• United States Peace dollarMint mark and date-by-date issue list requires transcription from a verified catalogue
• United States Walking Liberty half dollarMint mark placement change and full date list require verification from a printed catalogue
• United States Franklin half dollarDate and mint list, and the standard grading terminology for bell lines, require a verified reference
• United States one dollar silver certificate, 1957 seriesSignature combinations, star note details and Friedberg numbers require transcription from a verified edition
• United States national bank notesCharter number ranges, note types and series breakdowns require transcription from a specialist reference
• British Treasury one pound note (Bradbury)Issue sequence, printers and signature varieties require transcription from a verified reference
• British Wilding definitive stampsWatermark changes, phosphor bands and graphite line varieties require transcription from a standard catalogue
• French Marianne definitive stampsDesigner-by-designer type list and issue dates need transcription from a standard catalogue
• West German Heuss definitive stampsWatermark and fluorescence varieties require transcription from a standard catalogue
• West German Heuss definitive stampsA separate Federal Republic of Germany entity should be created and this record refiled
• Japanese Showa era definitive stampsSeries list, era-year to Gregorian conversions and perforation data require a standard catalogue