The skulls were donated in June to the Bellevue Goodwill, at 14515 NE 20th St., but there is no record of who brought them in or where that person got them, says Keith Seinfeld of the Medical Examiner's Office.
Goodwill employees realized the skulls were authentic human remains and contacted the Medical Examiner's Office and law enforcement.
The Medical Examiner's Office determined that two of the skulls are adult specimens that were clearly used in a medical clinic or instruction. But the third skull turned out to be very old and appears to be the fragile remains of a Native American child, Seinfeld said.
Under state law, the Native American skull must be repatriated to its tribe of origin. However, additional details are needed to properly identify the correct tribe or tribes.
The Medical Examiner is requesting that the person who donated the skulls provide information, without penalty, about the origin of the child's skull.
Anyone with information about the three donated skulls, or who has other human skeletal remains, should contact the King County Medical Examiner's Office at 206-731-3232, ext. 1.