 National Treasure no.83 is also important because it illustrates the close connection between Korea and Japan during this period.Koryu-ji's almost identical Miroku Bosatsu (Maitreya Bodhisattva) (image), a national treasure of Japan, is now believed to be of Silla manufacture because of the use of red pine, a wood used for Korean sculpture, ancient Japanese records, and the use of Korean carving techniques.