Three Pre-Columbian Bead and Jade Necklaces, A) Jadeite? oval and round bead necklace with carved stone facial pendant, 15" long, old history tag attached, found in 1936. B) Brown jadeite bead necklace with figural profile of seated man pendant, 17" long overall. C) Decorated stone bead necklace with carved jade triangular face pendant, 10 1/2" long.