United States double eagle
E63061
The United States double eagle is a $20 gold coin first minted in the mid-19th century, notable for its large gold content and iconic designs, and widely associated with America’s classic gold coinage era.
All labels observed (11)
How this entity was disambiguated
This entity first appeared as the object of triple T497621 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: United States double eagle Context triple: [Coinage Act of 1849, relatedTo, United States double eagle]
-
A.
Eagle (10-dollar gold coin)
The Eagle was a U.S. ten-dollar gold coin, first minted in the late 18th century, that became a principal high-denomination piece in American gold currency until its discontinuation in the 20th century.
-
B.
Quarter Eagle (2.50-dollar gold coin)
The Quarter Eagle was a U.S. gold coin with a face value of $2.50, minted from the late 18th to early 20th century and notable as one of the smallest denomination gold coins in American circulation.
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C.
Half Eagle (5-dollar gold coin)
The Half Eagle is a historic U.S. five-dollar gold coin, first authorized in 1792, that circulated widely in the 19th century and underwent several design and composition changes over its minting life.
-
D.
gold dollar
The gold dollar was a small U.S. gold coin minted in the mid-19th century, notable as the smallest-denomination gold coin ever issued by the United States.
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E.
Silver Certificate
A Silver Certificate was a form of U.S. paper currency once redeemable for a corresponding amount of silver, issued primarily in the late 19th and early 20th centuries.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: United States double eagle Target entity description: The United States double eagle is a $20 gold coin first minted in the mid-19th century, notable for its large gold content and iconic designs, and widely associated with America’s classic gold coinage era.
-
A.
Eagle (10-dollar gold coin)
The Eagle was a U.S. ten-dollar gold coin, first minted in the late 18th century, that became a principal high-denomination piece in American gold currency until its discontinuation in the 20th century.
-
B.
Quarter Eagle (2.50-dollar gold coin)
The Quarter Eagle was a U.S. gold coin with a face value of $2.50, minted from the late 18th to early 20th century and notable as one of the smallest denomination gold coins in American circulation.
-
C.
Half Eagle (5-dollar gold coin)
The Half Eagle is a historic U.S. five-dollar gold coin, first authorized in 1792, that circulated widely in the 19th century and underwent several design and composition changes over its minting life.
-
D.
gold dollar
The gold dollar was a small U.S. gold coin minted in the mid-19th century, notable as the smallest-denomination gold coin ever issued by the United States.
-
E.
Silver Certificate
A Silver Certificate was a form of U.S. paper currency once redeemable for a corresponding amount of silver, issued primarily in the late 19th and early 20th centuries.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States coin
ⓘ
bullion-related coin ⓘ gold coin ⓘ |
| alloyMetal | copper ⓘ |
| category | United States gold coinage ⓘ |
| circulationStatus | no longer struck for circulation ⓘ |
| collectibleStatus | highly sought after by numismatists ⓘ |
| composition | gold ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| currency |
US dollar
ⓘ
surface form:
United States dollar
|
| denomination | 20-dollar coin ⓘ |
| designType |
United States double eagle
self-linksurface differs
ⓘ
surface form:
Liberty Head double eagle
United States double eagle self-linksurface differs ⓘ
surface form:
Saint-Gaudens double eagle
|
| diameter | 34 millimeters ⓘ |
| edge | reeded edge ⓘ |
| faceValue | 20 United States dollars ⓘ |
| fineness | 0.900 gold ⓘ |
| firstYearOfMinting | 1849 ⓘ |
| goldContent | 0.9675 troy ounce of fine gold ⓘ |
| historicalEra | classical gold standard era ⓘ |
| historicalSignificance | iconic representation of classic American gold coinage ⓘ |
| inscription |
TWENTY DOLLARS
ⓘ
United States of America ⓘ
surface form:
UNITED STATES OF AMERICA
|
| legalTenderStatus | former legal tender of the United States ⓘ |
| marketRole | traded as a numismatic and bullion-related item ⓘ |
| mass | 33.436 grams ⓘ |
| metalStandard | United States gold standard coinage ⓘ |
| mintAuthority | United States Mint ⓘ |
| motto | IN GOD WE TRUST ⓘ |
| notableVariety |
1849 double eagle pattern
ⓘ
United States double eagle self-linksurface differs ⓘ
surface form:
1933 double eagle
|
| obverseDesign |
Liberty Head (Type 1)
ⓘ
surface form:
Liberty head (Liberty Head type)
Liberty striding forward with torch and olive branch (Saint-Gaudens type) ⓘ |
| obverseDesigner |
Augustus Saint-Gaudens
ⓘ
James B. Longacre ⓘ |
| periodOfUse | mid-19th century to early 20th century ⓘ |
| primaryUse |
high-value transactions
ⓘ
international payments ⓘ |
| rarityNote | 1933 double eagle is one of the rarest and most valuable U.S. coins ⓘ |
| reverseDesign |
Flying eagle with rays of the sun (Saint-Gaudens type)
ⓘ
Heraldic eagle (early Liberty Head issues) ⓘ |
| reverseDesigner |
Augustus Saint-Gaudens
ⓘ
James B. Longacre ⓘ |
| typicalMintMarks |
Carson City
ⓘ
Denver, Colorado ⓘ
surface form:
Denver
New Orleans ⓘ Philadelphia ⓘ San Francisco ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: United States double eagle Description of subject: The United States double eagle is a $20 gold coin first minted in the mid-19th century, notable for its large gold content and iconic designs, and widely associated with America’s classic gold coinage era.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Double eagle
this entity surface form:
Double eagle (20-dollar gold coin)
this entity surface form:
Liberty Head double eagle
this entity surface form:
Saint-Gaudens double eagle
this entity surface form:
1933 double eagle
subject surface form:
American Eagle gold bullion coin
this entity surface form:
Saint-Gaudens double eagle
subject surface form:
Eagle (U.S. coin)
this entity surface form:
Double Eagle (20-dollar gold coin)
this entity surface form:
Double Eagle gold coin design (1931 pattern)
this entity surface form:
Liberty Head double eagle (Type I) design
this entity surface form:
$20 gold double eagle obverse portrait of Liberty
this entity surface form:
Saint-Gaudens double eagle
Liberty striding forward with torch and olive branch (Saint-Gaudens type)
→
usedOn
→
United States double eagle
ⓘ
this entity surface form:
Saint-Gaudens double eagle
this entity surface form:
The Brasher Doubloon
this entity surface form:
The Brasher Doubloon