Study the paint on antiques

The best way to familiarise yourself with painted antiques and how their paintwork has worn over the years, is by visiting museums and taking detail photo's of as many examples as possible.

This is a detail photo of a sofa in the Musee Carnavalet in Paris.  Musee Carnavalet is a brilliant source for viewing a huge collection antique painted furniture, wall panels and trumeaux. See the post Finding Patina in Paris Museums ~ Carnavalet