Sovereign Gold Content Lookup
Bounded nominal modern sovereign denomination reference:full, half, quarter, double, reference, limitations. Royal Mint denomination specifications, rounded22 carat convention. Not a generic assay calculation, medieval standard, measured tolerance, valuation or authentication.
Description
Gold fineness is the fraction of a coin’s gross mass that is gold; gross and fine mass are different quantities.
Gold fineness is the fraction of a coin’s gross mass that is gold; gross and fine mass are different quantities.1
This lookup explains the chosen topic using a bounded stored reference.
When to use Sovereign Gold Content Lookup
Use this tool to read a bounded explanation for an exact reference topic. Establish the coin issue, source edition, measurement basis and reference date where applicable.
How to use Sovereign Gold Content Lookup and understand its results
- Establish the coin issue, source edition, measurement basis and reference date where applicable.
- Enter topic, using the field meanings and rules below, then run the tool.
- Read result. Inspect nested result fields where present, and review unknown records separately from known matches.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| topic | Sovereign reference topic | string | Required |
Choose one exact topic token from the table. The implementation looks up the stored value and returns it in the documented output field. Matching is case-sensitive; unrecognized tokens fail. This is an offline bounded reference, not a live catalogue or independent attribution.
| Topic token | Stored value |
|---|---|
| full | Modern standard full sovereign:22 carat, approximately 7.98805 grams gross and 7.3224 grams fine gold. |
| half | Modern standard half sovereign:approximately 3.9940 grams gross and 3.6612 grams fine gold at 22 carat. |
| quarter | Modern standard quarter sovereign:approximately 1.9970 grams gross and 1.8306 grams fine gold at 22 carat. |
| double | Modern standard double sovereign:approximately 15.9761 grams gross and 14.6448 grams fine gold at 22 carat. |
| reference | Royal Mint, sovereign denomination specifications; nominal conventional 22 carat standard. |
| limitations | Rounded nominal denomination reference, not measured assay, tolerance, metal valuation, medieval sovereign standard or authenticity. |
value=referenceTable[exactToken] Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Calculated observation or qualified reference | object |
| result.text | text | string |
{
"input": {
"topic": "full"
},
"output": {
"result": {
"text": "Modern standard full sovereign:22 carat, approximately 7.98805 grams gross and 7.3224 grams fine gold."
}
}
}Limitations and assumptions
Coin identification, reference applicability and measurement uncertainty require separate evidence. A returned explanation or arithmetic agreement does not establish authenticity, a certified grade or a current market value. Rounded nominal denomination reference, not measured assay, tolerance, metal valuation, medieval sovereign standard or authenticity.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Crown Denomination Silver Content Lookup: A crown’s silver content depends on the issue’s nominal mass and fineness. For a complementary comparison, use Trade Dollar 420 Grains Checker: Coin mass can be compared with the nominal standard of an independently identified issue.
References
-
Sovereign Gold Content Lookup — tool.io
Similar or alternative tools
- Crown Denomination Silver Content Lookup
A crown’s silver content depends on the issue’s nominal mass and fineness.
- Trade Dollar 420 Grains Checker
Coin mass can be compared with the nominal standard of an independently identified issue.