A Set of 18 Suspected Hongshan-style Jades: Visual Observation Record on Triangular Facial Perforation Distribution

This PDF presents a structured visual observation record based on image materials, focusing on directly observable features in the facial perforation arrangements of 18 jade objects. The document is purely descriptive in nature and is strictly limited to visual elements visible in the images. It does not address chronology, cultural attribution, functional interpretation, or historical explanation. This PDF is published as an accompanying visual record to an image dataset archived on the Zenodo platform.