We have been authenticating everything Picasso created since 2002.
Spain and France are the two countries where he lived and they have the largest Picasso archives and Picasso reference libraries. France has three Picasso Museums, in Antibes, Vallauris and the largest one of all in Paris. Spain also has three Picasso museums, in Barcelona, Madrid and Malaga.
It is crucial for authentication to have access to these archives and libraries and for this reason we have permanent art historians in both France and Spain.
Picasso did also live in Italy, but it was only for two months, in 1917. This is where he met his wife, Olga Khokhlova, in Rome. There is no Picasso museum, archives or dedicated Picasso library, in Italy.
The Ludwig Museum in Germany has a magnificent and large collection of 864 Picassos but they are all well documented in the French and Spanish Picasso libraries as well as in the international literature about Picasso.
The Art Institute of Chicago collection comprises 357 works by Picasso and they are also well documented.
We perform our authentication research Spain, in France and for the international documentation in New York City and Washington DC where we also have permanent art historian researchers.