A cylindrical simple system flute

A 10-key cylindrical simple system flute by Chapelain, Fernand, & Cie (La Couture, c.1900).

This flute has a cylindrical body and foot with a "parabolic" head joint, the same shape as the modern Boehm flute. But here the instrument is constructed as a simple system flute, with six finger holes and seven closed-standing keys on the body. The total ten keys are those of the usual eight-key flute plus two more: a high e'''/d''' trill key and a Tulou F# key. The keys are mounted on rods; needle springs throughout.

The head and foot are exactly like those of a Boehm flute.

Comparison with a conical simple system flute by Thibouville Cabart (Paris, c.1900)

The two flutes are furnished with exactly the same 10 keys.

The black material in hole 5 is my crude and temporary attempt to fix the altered original hole, which would have been round.