According to Vatelot, this instrument may have been built by Nicolo Amati.
Stradivari Dalla'U.R.S.S., Stradivari E I Grandi Liutai Cremonesi Dall'U.R.S.S., Cremona
"[This violin].... is clearly the work of Nicola."
Nicola Amati & the 'Alard', Roger Hargrave, The Strad, March, 1992, London
"This instrument has unique sound qualities and is in perfect working order. Despite its small size (351,5 mm) and the style of Amati, the violin sounds fine and works well in big halls, thus differing from other instruments by Amati. It is one of the best instruments in the State Collection."
The Amatis' DNA, Fausto Cacciatori, Bruce Carlson & Carlo Chiesa, the Amatis' DNA: A Dynasty of Stringed Instrument Makers in Cremona, Cremona