Ark of the Covenant - Bible History Online
Bible History

Naves Topical Bible Dictionary

SHEKEL, Used to weigh

=>Iron

1 Samuel 17:7

7. And the staff of his spear was like a weaver's beam; and his spear's head weighed six hundred SHEKELs of iron: and one bearing a shield went before him.

Iron - SHEKEL-Used to weigh SHEKEL in Naves Topical Bible (Bible History Online)