The style of skull rack of Rukai is the same as the Paiwan one. Both of them are built by stack of slates. This picture is from page 71 of Photo Album of the Raw Barbarians in Taiwan, edited by Narita Takeshi.
The skull rack of Rukai
- NCL Special Collection / 4217 / (N/A) / About 1920s / 《Faces of the Century (Part I)》