A GOOD FIVE-KEYED FLUTE FROM THE WORKSHOP OF JOSEPH BAUMANN  (Paris,  active c. 1790 - c. 1830). 
 
Solid silver keywork, ebony  body, five silver keys, tuning barrel. 
Embouchure measures 9/4 X 10.7 mm. Plays well at 435 pitch. 
Faintly stamped (lyre) / BAUMANN  / A PARIS / (star).
Keys stamped with French hallmark plus maker's mark. 
Green leather bag, appears to be the original.
Circa 1820, perhaps a bit earlier.
A similar instrument is in the collection of Michael Lynn. 
Elegant instrument from the restoration period, fine original condition.