The collector's research library

Start with the question.
Follow the evidence.

Practical guidance for identifying, valuing and documenting antiques.

Three-dimensional style illustration of coins, a purple crystal cluster and a ceramic teapot — AI-generated category illustration, not real specimens, authentication or sale evidence.

Identify by object

Understand value

Prepare & collect

Specific collecting questions

Marks and hallmarks field guides

Read fineness numbers, assay-office symbols, factory marks, signatures and labels without treating one mark as proof of authenticity.

Research for your next decision

Buying, selling, or checking an estimate?

Choose a practical guide for the question in front of you.