Description
Format fol.
Archival records often contain bounded dates, editions, and source identifiers. Arithmetic on supplied coordinates can check consistency while leaving historical interpretation and authenticity unresolved.
Format fol.
When to use this tool
Use Historical Document Recto Verso Label when you need a precise date-span or source-record bookkeeping step.
How to use the tool and how it works
- Enter folioNumber, side. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read reference. Use the output convention below.
Require positive folioNumber and side recto or verso. Format fol. number followed by r or v.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| folioNumber | Folio Number | Required. Safe integer; minimum 1. |
| side | Side label under the stated orientation convention. | Required. Text; one of "recto", "verso"; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| reference | Supplied reference in the documented record convention. | Required. Text; maximum UTF-16 length 8192. |
json
{
"input": {
"folioNumber": 12,
"side": "verso"
},
"output": {
"reference": "fol. 12v"
}
}Limitations and assumptions
- This is a reference label without reading a source, verifying foliation, or counting pages or leaves.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Consult the original catalog and documented calendar or dating convention when historical interpretation matters.
References
Similar or alternative tools
- Manuscript Folio Surface Reference
Concatenate them for reference.
- Artwork Verso Recto Inscription Label
Accept recto or verso and nonempty inscription, then prefix the inscription with its stated surface.