B08 · Reference edition 2026.11
Four-flap folders — Comparison and alternatives
A four-flap folder encloses a flat item through an ordered sequence of folds. The overlap arrangement determines access and closure.
Scope and purpose
Compare alternatives using the same question and context. A difference in wording, layout or scale is not automatically a difference in performance. Keep the original observations available and explain which differences are meaningful for this comparison.
Working notes
This collection describes enclosure forms, access routes and documentation practices for paper-based material. It is intended for reading and planning, not for directing treatment of fragile objects. Fold diagrams and record examples are original illustrations with no associated collection or accession data. Material descriptions distinguish observed features from documented properties. Decisions about a real object, its condition and its environment require the relevant professional judgement.
Practical example
Number the lower, side and upper flaps on the reference diagram.
| Reference record | Interpretation |
|---|---|
| B08 | Four-flap folders |
| Scope and purpose | A four-flap folder encloses a flat item through an ordered sequence of folds. The overlap arrangement determines access and closure. |
| Limits and interpretation | A closure sketch does not establish the suitability of a board or adhesive. |
Review checklist
State the comparison question; align context and labels; list common features separately from differences; leave unsupported conclusions open.