GIA4784136 Musical instruments: different types of flutes. From top to bottom: flute traversiere Briccialdi system has 16 keys (Florence late 19th century), flute traversiere Ziegler with 12 keys (Vienna late 19th century), flute soprano, flute traversiere Anciuti late 18th century, flute sweet tenor de Bressan, late 18th century. by Anonymous; Private Collection; (add.info.: Musical instruments: different types of flutes. From top to bottom: flute traversiere Briccialdi system has 16 keys (Florence late 19th century), flute traversiere Ziegler with 12 keys (Vienna late 19th century), flute soprano, flute traversiere Anciuti late 18th century, flute sweet tenor de Bressan, late 18th century.); by Giancarlo Costa; out of copyright.