Demonstration of Stradivari, Amati and Vuillaume violins from Florian Leonhard

This is part of the following story on Violinist.com:
Violinist.com's Laurie Niles talks with LA Phil Associate Concertmaster Nathan Cole, who demonstrates four fine violins from Florian Leonhard Fine Violins (based in London and NY) at an event in South Pasadena, Calif. on Nov. 13, 2017. The instruments shown here include:
1695 ex-Salomon Stradivari violin, Cremona (long pattern)
1724 "Abergavenny" ex-Kavakos Antonio Stradivari violin, Cremona
1617 Girolamo Amati violin, Cremona
1862 Jean Baptiste Vuillaume violin, Paris