You can reach me to ask for doubts or anything related to Modigliani and remember, collaborations are appreciated.
(data, images, etc. not money).
Sorry to inform again, but I do not do expertises, my opinion is totally worthless in terms of market.
I can tell you data on a work, attributed or undoubted if I have them
( even of a fake) but I do not do any kind of certificates, expertises, etc. etc...
To do that you have to contact: Marc Restellini. Christian Parisot, Osvaldo Patani, etc..