Unfortunately, all documents concerning this instrument were lost in the Second World War.
Mostra di Antonio Stradivari, Mostra di Antonio Stradivari (Palazzo Borromeo - Isola Bella), Cremona
Valued informally at $1 million by 'Expert X,' who questioned the authenticity of the scroll. Valued informally at $1.1 to $1.6 million by Adam Crane, who also questioned the scroll.
"It has sometimes been called 'Amatise' because of its evident relationship with the work of Nicolò Amati... and it is also known as 'de Ahna' because it was played by the Austrian violinist Heinrich de Ahna (1833–1892, second violin in the renowned Joachim Quartet." – 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