The Pernik sword is a medieval double-edged iron sword unearthed in the ruins of the medieval fortress of Krakra near Pernik, western Bulgaria, on 1 January 1921. It bears an inscription in silver inlay on the blade. The sword is preserved in the National Archaeological Museum of Bulgaria in Sofia under inventory number 2044. The sword is in length and up to in width. The inscription, written in the Latin alphabet, was long considered incomprehensible. It reads as follows: