Illustrative reference; not a tested product or a certification.

Reference material / 2026

A considered enclosure. A legible record.

Notes on protective structures for books, papers and the records that accompany them.

Overview

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.

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B / 01

Object dimensions

Measure the complete stored form, including protrusions and folded edges. Record orientation so that width, height and depth remain interpretable.

B / 02

Four-flap folders

A four-flap folder encloses a flat item through an ordered sequence of folds. The overlap arrangement determines access and closure.

B / 03

Drop-spine boxes

A drop-spine structure provides a supported opening route. Interior clearances and hinge behaviour should be described independently.

B / 04

Phase boxes

A phase box is a protective enclosure whose dimensions and closure depend on the stored form. Record the flap sequence explicitly.

B / 05

Loose-sheet supports

An enclosure for loose sheets should distinguish the stack, support and access margin. Handling needs differ from those of a bound volume.

B / 06

Material descriptions

A material record separates supplier wording, observable structure and documented properties. Descriptive colour is not a conservation property.

B / 07

Grain and fold direction

The relationship between material direction and fold direction belongs in the construction record. Keep it visible when the outline is rotated.

B / 08

Clearance and fit

Fit includes the stored object, support layers, access space and the way the enclosure is opened. These are separate considerations.

B / 09

Labels and identifiers

A label locates a record and identifies an enclosure. The label position should not obscure a closure or require unnecessary handling.

B / 10

Storage orientation

Shelf orientation and access direction affect how a stored enclosure is understood and retrieved. Describe both the shelf and the object.

B / 11

Condition observations

A condition note distinguishes what can be seen from what is suspected. Describe the location and extent without inventing a diagnosis.

B / 12

Enclosure records

A complete record connects the stored-form sketch, construction sequence, material description and revision. Keep unknowns visible.

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Illustrative reference; not a tested product or a certification.