The Library standard

Clarity earns confidence.

Good records distinguish observation from opinion, preserve context, and show an object as honestly as possible.

Condition language

Five useful descriptions, always qualified.

Remarkably preserved or expertly conserved; few meaningful qualifications.

High original condition with limited, coherent evidence of careful use.

Sound and attractive, showing normal use and possible well-executed service.

Mechanically serviceable with visible wear, restoration, or alterations fully described.

Significant use that is stable, legible, and presented without cosmetic concealment.