DCM 0698: Eisenbrandt Double English Flageolet

All left pipe keys appear to be original; of the right pipe keys, only the 1st finger key is possibly original although abused on the finger spatula when a spring and rivet were replaced. The F key is obviously from a transverse flute, complete with patent roller, which on this instrument is useless due to the shifted position of the next lowest fingerhole.
Instrument type: Double English Flageolet
Medium: Ebony, silver keys (marked with eagle or floral design), ivory ferrules, and little fingerhole bushings (one is missing). Bone mouthpiece.; 47.6 cm., 45.9 cm. without beak.
Key Holes System: Right tube: 0/5 holes plus 4 keys, square flaps, pin in block. Left tube: 0/7 holes, hole 1 plugged for half-hole vent, with 3 keys on pipe and a 4th key (high C) on fipple stock, plus 2 cut-off keys for LH thumb and 1st finger.
Mark Maximum: EISENBRANT / BALTIMORE
Mark Additional: Mark on fipple stock, right tube and body.
Condition: Original mouthpiece missing, 2 silver studs missing, and 3 keys missing as described above. See DCM 184, upper section of sponge chamber contains 6 angularly bored air conduits.
Provenance: Valentine O. Gorman, New York, 14 Feb. 1927.

The Dayton C. Miller collection in the Library of Congress, contains nearly 1,700 flutes and other wind instruments, statuary, iconography, books, music, trade catalogs, tutors, patents, and other materials mostly related to the flute. It includes both Western and non-Western examples of flutes from around the world, with at least 460 European and American instrument makers represented. Items in the collection date from the 16th to the 20th century.