求鉴定: 716 grooved 'alien hard drives' from Tibet — is there a single real photo of these?

Found a writeup on the Dropa Stones (a.k.a. Dzopa / Bayan Har stones) and I want someone who actually knows to weigh in, because something feels off. The story: 1938, Chinese archaeologist Chu Pu Tei finds caves in the Bayan Har mountains (Qinghai/Tibet border zone), graves of metre-tall beings with……