Тип: Dvojnice (Double Vertical Whistle Flut) Медиум: неидентифицированная древесина.

Instrument type: Dvojnice (Double Vertical Whistle Flute)
Medium: Unidentified wood.; 35.5 cm.
Key Holes System: Left tube: 0/3 holes ; right tube: 0/4 holes.
Mark Maximum: No mark.
Provenance: Sigmund Koch, Munich, 27 Aug. 1930. Formerly in the collection of Theo. Schäffer.

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.