Use this palaeographic utility to apply a stated dating, script, abbreviation, codicological, metrological, layout, or condition rule consistently while preparing manuscripts for scholarly review.

Ink loss

Ink loss or flaking severity, 0-3.

Burn-through

Burn-through of the support, 0-3.

Halo bleeding

Brown halo bleeding around strokes, 0-3.

Sheet weakness

Mechanical weakness (cracking, tearing) of the sheet, 0-3.

Rate iron-gall ink corrosion on the stated transparent rule: each of four indicators (ink loss, burn-through, halo bleeding, mechanical weakness of the sheet) is scored 0-3 by the observer, and the grade is the rounded mean with labels none/slight/moderate/severe for 0/1/2/3. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Mean score

Unrounded mean of the four indicator scores.

Corrosion grade

Corrosion grade: rounded mean score on the 0-3 scale.

Grade label

Label for the grade band.

• Script and manuscript evidence varies by language, region, institution, period, scribe, material, restoration, and cataloguing convention. A heuristic flag or score is not an authoritative date, hand attribution, reading, provenance, or conservation diagnosis.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Retain page images, scale, foliation, material, provenance, diplomatic transcription, uncertainty, and comparison exemplars; confirm conclusions with codicological context and specialist judgment.

• Carbon / Iron-Gall Note Generator

  Generate a condition-note verdict for carbon versus iron-gall ink under the stated counting rule: three documented carbon traits (opaque black core, black in reflectography, water-smudge resistant) are counted against three documented iron-gall traits (brown edge tinge, halo bleeding, corrosion holes), and the majority side wins while a tie yields 'mixed indications'.

• Expunging Blackout Rater

  Rate how heavily an entry was expunged under the stated rule: share of lines blacked out banded as untouched (0%), spot (<10%), partial (10-50%) or wholesale (>50%), with fullyBlackedOut set when every line is struck or the observer declares whole-entry erasure.

• Margin Proportion Rater

  Rate measured margins against the classic codicological rule of thumb (outer about twice the inner, bottom about twice the top) with exact ratios and a stated default tolerance of 0.25 on each ratio.