Grade Description Lookup
Bounded offline reference: Bounded adjectival grade descriptions concern observable wear, not a universal service grading guarantee. Source: ANA grading guide; grading-service educational guides. Issue, manufacture, damage, strike and service edition matter; no grade inferred from text or photographs. Supported topic keys: Poor, Good, Fine, VeryFine, ExtremelyFine, AboutUncirculated, MintState. No complete external corpus or live policy implied.
Description
Adjectival grade descriptions summarize visible condition at a broad collecting level.
Adjectival grade descriptions summarize visible condition at a broad collecting level.1
This lookup explains seven stored bands without examining a coin or awarding a grade.
When to use Grade Description 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 Grade Description 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 | Topic | string | Required |
Select one exact supported band token from the table. Return its fixed description; tokens such as VeryFine have no space and differ from the labels used by the numeric-grade conversion table.
| Topic token | Stored value |
|---|---|
| Poor | Barely identifiable design with very extensive wear. |
| Good | Heavily worn major devices generally discernible; issue-specific detail varies. |
| Fine | Moderate-to-considerable wear with principal design details remaining. |
| VeryFine | Moderate wear with appreciable design detail. |
| ExtremelyFine | Light wear on high points with much detail remaining. |
| AboutUncirculated | Very slight wear on limited high points; not an unworn Mint State piece. |
| MintState | No circulation wear; strike, luster, marks and eye appeal still affect the numeric grade. |
description=gradeDescriptions[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": "Poor"
},
"output": {
"result": {
"text": "Barely identifiable design with very extensive wear."
}
}
}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.
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 Sheldon Numeric Grade Lookup: Numeric coin grades map to conventional wear-state bands at specific supported grade points. For a complementary comparison, use Adjectival to Numeric Grade Converter: A broad adjectival grade band can contain several supported numeric grades.
References
-
Grade Description Lookup — tool.io
Similar or alternative tools
- Sheldon Numeric Grade Lookup
Numeric coin grades map to conventional wear-state bands at specific supported grade points.
- Adjectival to Numeric Grade Converter
A broad adjectival grade band can contain several supported numeric grades.