Observe the object
Materials, craftsmanship, signatures, condition and distinctive features: physical examination reveals details that photographs alone cannot convey.
Recognise what makes each object distinctive. Find the clarity to decide what comes next.

An object is more than a signature. Its materials, history and craftsmanship tell a story and sometimes raise questions. Our role is to gather the evidence, put it in context and help you understand what you own.
Each object calls for the right specialist. We draw on expertise suited to its nature, period and the questions raised by its examination.
Materials, craftsmanship, signatures, condition and distinctive features: physical examination reveals details that photographs alone cannot convey.
We compare our observations with the available documents, provenance and relevant references. Where needed, specialists from different fields contribute to the examination.
We explain our findings, the evidence supporting them and any questions requiring further research, so you can plan your next steps.
Illustration — the look at the material.
Eleven areas of expertise, the same attention to the singularity of objects and the intentions of those who own them.
Offices in Paris, Switzerland and the United States. Support across much of Europe, with arrangements tailored to each object.
Authentication is based on a physical examination. Near our offices, we organize a drop-off with you by appointment.
For items that can be shipped, we provide a special package that is secure, tracked and insured. The terms and conditions are defined with you before sending.
For furniture, vehicles and objects that are too bulky, an expert comes directly to the site.
An object to authenticate, a collection to understand, a decision to prepare? Present your project to us. We will define together the appropriate support.
Tell us about your project
