The catalog of the sale of the collections of Santo Varni has been made, I don´t know from who, after the death of the Artist. If this sketch is described there also, it doesn´t perhaps contain the indication of the Author. Then, the catalog won´t give perhaps us the information that we ask.
Many years ago I have frequented the courses of Librarian and Archivist near the School Vaticana. For thirty years, besides other jobs, I have made searches in archives and libraries. I have therefore a certain experience.
The search in Genoa, among the administrative documents of the Academy Ligustica, can furnish us data on the origin of the sketch. Was it purchased, and to whom belonged? Was it given instead, and from who?
The text of the deliberation doesn´t definitely loosen perhaps our doubt, because the deliberation doesn´t perhaps tell us the name of the Author.
The personal papers of the sculptor Santo Varni stay, that are to the Academy Ligustica: a great deal of documents.
Here it is the solution of the enigma. The sculptor has surely studied this sketch, he knows from what collection originates and what it contained that collection. He liked a lot this sketch and the Academy has given it to him.
From the documents, that they contain the study of on this sketch, we will know therefore who is the Author? Certainly an attribution.
This search is not therefore proper for a student, but to a professional. 10 days of search, according to my calculations.
But I go out of a dramatic experience, you know it, and I have need than at least two months of convalescence. I have resolved, with the documents, more arcane enigmas and more difficulties than this.
I love you
Fausta