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
The pseudepigraphic Epistle of Barnabas, which scholars suggest may have been before the end of the 1st century, and certainly earlier than 135, whether the writer was an orthodox Christian or not, described the shape people at the time attributed to the device on which Jesus died: the comparisons it draws with Old Testament figures would have had no validity for its readers if they pictured Jesus as dying on a simple stake. Referring to what he saw as Old Testament intimations of Jesus and his cross, he likened the cross to the letter T (the Greek letter tau, which had the numeric value of 300), thus describing it as having a crossbeam. He also wrote, with regard to : "The Spirit saith to the heart of Moses, that he should "make a type of the cross and of Him that was to suffer", that unless, saith He, they shall set their hope on Him, war shall be waged against them for ever. Moses therefore pileth arms one upon another in the midst of the encounter, and standing on higher ground than any "he stretched out his hands", and so Israel was again victorious."