Strong's Greek #4604
σιδήρου

Englishman's Concordance (References)

σιδήρου sidērou — 1 Occurrence

Revelation 18:12 - N-GMS
GRK:χαλκοῦ καὶ σιδήρου καὶ μαρμάρου
NAS: wood and bronze and iron and marble,
KJV: of brass, and iron, and marble,
INT: of brass and of iron and of marble