Image: Double Duct Flute from the Colima Culture
This flute is from the collection of the Museum of Fine Arts, Boston. It is listed by the museum as a Double Duct Flute from the Colima Culture, 300 BCE - 250 CE, Mexico. It measures 33 cm × 3.3 cm (13" × 1.3"). Item 24768, Accession number 1984.372.
See The Development of Flutes in the Americas for more context about this image.