Dendrochronological analysis by John C. Topham, Surrey: youngest ring is 1686
Henri Wieniawski; Viviane Hagner dal 1999/2012; Alina Pogostkina 2013
Gand & Bernardel, Freres (Paris) 1845; Comte Sasserno 1845/84; David Laurie (Glasgow) 1884/84; Wimphen (Paris) 1884; David Johnson 1887/94; W.E. Hill & Sons 1906; John Summers 1906; Nippon Music Foundation 1999
