What does a catalogue attribution actually mean?

Authentication, Condition & Provenance · Revised 3 August 2026

An antiquarian book showing a repaired tear beside a magnifier and a typed condition report

Our cataloguing follows established conventions. An unqualified statement of authorship is our considered opinion that the work is by that hand; qualified forms such as attributed to, circle of, or after each carry a defined and progressively weaker meaning, explained in the glossary published with every catalogue.

Share

If this answer does not address your circumstances, write to us. Enquiries are reviewed individually and answered in writing.

Related questions

Related guides

An armorial bookplate and an old ink ownership inscription on a book's front pastedown

4 min read

Understanding Provenance

Provenance is the recorded history of an object's ownership. This guide explains how it is assembled, why it affects value, how it is described in a catalogue, and what a gap in the record means.

Read the guide

An open antiquarian book showing a repaired tear beside a magnifier and a condition report

4 min read

Understanding Condition Reports

Condition is a principal determinant of value in paper-based collecting. This guide explains what a condition report contains, the vocabulary it uses, and the limits of what it can tell you.

Read the guide

An early printed folio open at a woodcut illustration beside a marbled slipcase

4 min read

Collecting Rare Books

A grounding in the vocabulary and habits of book collecting: how editions and issues differ, why collation matters, what a binding tells you, and how to build a collection with a coherent shape.

Read the guide