gold coin
Let an agent identify gold coins by issuer, type, weight and fineness, relay bullion and numismatic reference information, explain how value is assessed, and route buying, selling and investment decisions to licensed dealers and advisers.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent identify gold coins by issuer, type, weight and fineness, relay bullion and numismatic reference information, explain how value is assessed, and route buying, selling and investment decisions to licensed dealers and advisers.
A coin made mainly of gold, historically issued as circulating money such as the sovereign, the double eagle and the ducat, and today issued mainly as bullion coins such as the Krugerrand, Maple Leaf and American Eagle or as commemorative pieces; gold coins are valued by weight and fineness, by numismatic rarity and condition, and are traded under precious metal and tax rules.
What it is for: Historically money; today bullion, collecting and commemoration.
It can be identify coins by issuer and type; explain weight, fineness and value assessment; relay bullion and numismatic references; route transactions and investment questions to professionals.
Distinguishing features
Gold content defines base value
Legal tender face value often nominal
Numismatic premium for rarity
Subject to precious metal and tax rules
What it looks like
A yellow metal coin with a design, denomination and often weight and fineness marks.
Physical character
bullion coin weight: 1 troy ounce weight - common; fractions exist
fineness: 0.900-0.9999 ratio - by coin
troy ounce: 31.1035 g
How it is recognised
Gold content stated by weight and fineness
Historical circulating coins versus modern bullion
Gold-plated tokens and medals are not gold coins
Related models
is a kind of - a coin by metal
is made of - the metal
is a kind of - in the investment sense
is studied by - the discipline
In practice
Families and kinds
historical circulating gold coins
modern bullion coins
commemorative gold coins
large format coins such as the Big Maple Leaf
gold coins by country and denomination
Identifiers
catalogue number such as KM numbers numismatic catalogues
weight and fineness marks on the coin
Standards and regulation
Legal tender and mint acts of issuing states
Tax treatment of investment gold, such as VAT exemption in the EU
Anti-money laundering rules for precious metal dealers
Hallmarking and fineness standards
Failure modes and hazards
Counterfeits and tungsten-filled fakes
Overpaying for numismatic premiums
Theft and storage risk
Agents giving investment advice
Also called
+25
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Identify Which coin.
Identity.
Type
Issuer and type.
Type
Type.
- Which gold coin is it, who issued it, and what are its weight and fineness? definition
- Is the user asking whether to buy or sell, which needs a licensed dealer or adviser? boundary
Authenticity
Authenticity.
Authenticity
Authenticity.
- How is a gold coin authenticated, and what fakes are known? provenance
- Which entry fits coin authentication? action
Value Value assessment.
Numbers.
Bullion
Metal value.
Bullion
Bullion.
- How is the metal value computed from weight, fineness and the gold price? action
- Which sources give the gold price? provenance
Numismatic
Collector value.
Numismatic
Numismatic.
- How do rarity, condition and grading affect value, with references? provenance
- Which entry fits coin grading? action
Rules Regulation and trade.
Regulation.
Tax
Tax and legal tender.
Tax
Tax.
- How are gold coins treated for tax and legal tender in a given country, in general terms? provenance
- Is the user asking for tax advice, which needs a professional? boundary
Dealers
Dealers and storage.
Dealers
Dealers.
- What rules apply to dealers, and what storage options exist? provenance
- Which entry fits precious metal dealing? action
History History and collecting.
Context.
History
History.
History
History.
- How did gold coinage develop from ancient staters to the gold standard and bullion coins? provenance
- Which references are standard? provenance
Collecting
Collecting.
Collecting
Collecting.
- How is gold coin collecting organised, and which catalogues are standard? provenance
- Which entry fits numismatics? action
What the second pass must settle
- Should bullion coins be a separate entry?
- How should numismatic catalogues be linked?
- The registry entry has merged aliases naming specific coins; should they be split off?