One of the set of instruments made for Charles IX.
The Hill Collection of Musical Instruments, David D. Boyden, Oxford University Press, London, 1969
"This very well-preserved viola, in which more of the pattern of the decoration on the back may be seen than in almost any others of the set, is the only one of the violas, all originally of tenor size, to retain its initial dimensions. . ."
The surviving instruments of Andrea Amati, Laurence C. Witten II, Early Music