B14 · Reference edition 2026.11
Drop-spine boxes — Recording and revision
A drop-spine structure provides a supported opening route. Interior clearances and hinge behaviour should be described independently.
Scope and purpose
A reference record should allow another reader to reconstruct the intended description. Keep the identifier, context and revision together. When information changes, explain the change and retain enough of the earlier description to understand what was superseded.
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
Show closed, opening and supported-open views of the same reference structure.
| Reference record | Interpretation |
|---|---|
| B14 | Drop-spine boxes |
| Scope and purpose | A drop-spine structure provides a supported opening route. Interior clearances and hinge behaviour should be described independently. |
| Limits and interpretation | Do not force the lid or spine of an actual enclosure to match an illustration. |
Review checklist
Check the identifier; describe the observation and its source; date the revision; link affected figures; distinguish confirmed facts from open questions.