"The 'Hellier' and the instrument known as the Spanish Stradivari, dated 1679 and 1687 respectively, have backs of broad curl in one piece; the latter is exceptionally handsome, and both are of wood of foreign (i.e. non-Italian, growth)." (p. 43)
Antonio Stradivarius: His Life & Work, W. Henry, Arthur F. & Alfred E. Hill, W. Henry, Arthur F. & Alfred E. Hill, Antonio Stradivari: His Life & Work (1644-1737), London
According to Doring, this instrument is misnamed because it was not one of the ones made for the Spanish court. The name was given by Ole Bull, who mistakenly took it for one of the Spanish quintet.
How Many Strads?, Doring, Bein & Fushi, Doring, Bein & Fushi, How Many Strads? (1999 edition), Chicago
"[in 1883] the Hills sold the violin to Mr. Charles James Oldham of Brighton, who owned a superb quartet of Stradivari, which he bequeathed to the British Museum. In 1912 the British Museum, following public protests, refused the gift and the instrument returned to the Hills." – Alessandra Barabaschi
Antonius Stradivarius (Volumes I-IV), Jost Thöne, Jan Röhrmann, Alessandra Barabaschi, Jost Thöne, Jan Röhrmann, Alessandra Barabaschi, Antonius Stradivarius (Volumes I-IV), Cologne