Sword of Altaïr
The Sword Of Altair
Altaïr's personal sword that he uses throughout Assassin's Creed, Assassin's Creed: Altair's Chronicles, and Assassin's Creed: Bloodlines. The

blade's hilt is shaped like an eagle's wings, while the blade itself is both long and agile, making it a deadly weapon to be reckoned with.
Assassin's Creed: Altaïr's Chronicles
Altaïr was equiped with his sword even before the events of Assassin's Creed, using it to wipe out platoons of Templars.
Assassin's Creed

Altaïr starts the game with his sword, which he is very skilled with until Al Mualim demotes him to Novice for breaking all three tenets of The Creed, which also decreases his skill greatly. During his progression back to his former rank, Master Assassin, Altaïr eventually regains his mastery with Longswords.
Assassin's Creed: Bloodlines
Altaïr still possesses his sword during the events after Assassin's Creed.
Assassin's Creed 2
Altaïr's sword comes into the possession of Auditore Family Villa's weapon shop (when all seals are found) avaliable to purchase for 45000 florins after Memory Block 9.
AC2 Stats
Damage 5
Speed 5
Deflect 5