Phra Kru" is the antique which sacred things or amulet that was buried in various sanctuary such as stupa in the temple, under the church, chapel though under ground or under trees and in the home of ancient amulet collectors. Which the important reason in buried(someone called "hide") in the ancient time was kept for legacy to their progeny and young generation. In summary was kept by buried that make the amulets still in a good condition, not lost and prevent from destroyed.
In generally, Phra Kru will had more age than 100 years. Some mold of Phra Kru
was more than 1000 years. And, all various of Phra Kru that was found will make
young generation can recapture history, prosperity in culture arts in ancient era
from Phra Kru.