magictransistor: Thangka depicting Kalachakra (དུས་ཀྱི་འཁོར་ལོ།), early 15th century, Tibet.

magictransistor: Thangka depicting Kalachakra (དུས་ཀྱི་འཁོར་ལོ།), early 15th century, Tibet. -- source link