Holy Lance
The Holy Lance in Vienna is displayed in the Imperial Treasury or "Weltliche Schatzkammer" (lit. Worldly Treasure Room) at the Hofburg Palace in Vienna, Austria. It is a typical winged lance of the Carolingian dynasty. At different times, it was said to be the lance of Saint Maurice or that of Constantine the Great. In the tenth century, the Holy Roman Emperors came into possession of the lance, according to sources from the time of Otto I (912–973). In 1000, Otto III gave Boleslaw I of Poland a replica of the Holy Lance at the Congress of Gniezno. In 1084, Henry IV had a silver band with the inscription "Nail of Our Lord" added to it. This was based on the belief that the nail embedded in the spear-tip was one that had been used for the Crucifixion of Jesus. It was only in the thirteenth century that the Lance became identified with that of Longinus, which had been used to pierce Christ's side and had been drenched in the Blood of Christ and water.
Instrument of Jesus' crucifixion
In his First Apology, 55 Justin refers to various objects as shaped like the cross of Christ: "The sea is not traversed except that trophy which is called a sail abide safe in the ship … And the human form differs from that of the irrational animals in nothing else than in its being erect and having the hands extended, and having on the face extending from the forehead what is called the nose, through which there is respiration for the living creature; and this shows no other form than that of the cross (σταυρός)."
The apocryphal Acts of Peter, of the second half of the 2nd century, attaches symbolic significance to the upright and the crossbeam of the cross of Jesus: "What else is Christ, but the word, the sound of God? So that the word is the upright beam ("to orthon xulon") whereon I am crucified. And the sound is that which crosseth it ("to plagion"), the nature of man. And the nail which holdeth the cross-tree unto the upright in the midst thereof is the conversion and repentance of man."