Object
French Glass
Cameo, pâte-de-verre, and the Art Nouveau surface
French glassmakers turned Art Nouveau into a material: cameo, pâte-de-verre and internally coloured glass, signed by the artist rather than the works.
What to look for
An etched signature, layered colour within the glass, and a surface that is modelled rather than moulded.
In this group
The searches this object is worth looking at. Each opens the collection for it.