O. Mauri was a Milanese flute maker active between the late 19th and early 20th centuries. His instruments, produced in small series, are crafted with great care and are considered extremely rare. Here I present a beautifully crafted maillechort flute (number 2346) with the extra key RE-REb, SOL-SOL♯, SI-DO, LA-SOL The flute is playing condition and it is tuned at 440. Weight 459 g. Nice case of Anton Sattler of Zurich. In this site you will also find a wooden flute by Mauri.