The Gansu woman still has a smile on her face.
Soldiers on horseback in Gansu.
A local man in sheepskin jacket in Gansu.
A group photo of the Gansu family, which one of the white clothes on the right still has a knife pinned to his waist.
A woman with long pigtails.
Back charcoal workers in Gansu at the end of the Qing Dynasty.
Women and children in Gansu at the end of the Qing Dynasty.
A group photo of a family in Gansu at the end of the Qing Dynasty.