Ivlivs

An Imperial Gold coin that belonged to Jason, on one side it had a picture of an axe and the word "Ivlivs" and on the other side a picture of a Julius Caesar. Once flipped, it turns into a well balanced, double edged sword or a Lance depending on the need. In Latin; Ivlivs translates to Julius, which relate to 'Julius Caesar' the dictator of the Rome. It was destroyed during Jason's fight with the Giant, Enceladus, although it is possible the that sword Hera gave Jason at the end of Lost Hero could be Ivlivs or a similar coin/sword.



Trivia

 * Ivlivs is made of Imperial Gold, instead of the normal materials greek weapons are made of like celestial bronze, tempered steel, or stygian iron. This is due to the weapon being forged at the Roman Camp Half-Blood, where everything is Romanised and changed to reflect the Roman period in history.
 * It could be possible that Imperial Gold is more powerful than Celestial Bronze, because Jason's gold sword in the beginning of the "Lost Hero", Ivlis (the gold sword, that probably isn't the sword's name) vaporized the Venti, and Annabeth said that it's really hard to kill the Venti unless you catch them by surprise, or hit them in the right spot. Either that or Jason really did hit them in the right spot, as he was letting him insticts come rulin, he might be well trained for that on the Roman Camp Half-Blood, as we know, roman gods are more war like, so their demigods
 * If you destroy a Imperial Gold weapon, it will burst with suficient energy to knock out a giant, such as Enceladus.