I believe the correct answer is: from the independent nation of Korea.
This gold headdress is from independent nation of Korea in the period of the Three Kingdoms - Baekje (백제), Silla (신라) and Goguryeo (고구려). The Three Kingdoms period lasted from 57 BC to 668 AD.
The gold headdress on the photo is the enduring monument from Three Kingdoms period of Korea, found in a Large tomb mounds. This headdress represents the crown made especially for burial. Crown is made from thin cut sheets of gold and wire on which are added coma-shaped ornaments of green and white jadeite. hope it helps
