you only get it in one mission with altair when he needs to save his son from dying
You can't...
tools of the trade
you can't, it's not possible
-The Sword of Altair -Throwing Knives -Dagger -Studded Gloves -Hidden Blade
Microtech Knives are sold by the Microtech Store, Arizona Custom Knives, Razor Sharp Unlimited Discount Knife Store and BladeOps. They are also sold at eBay and Amazon.
you can either pick pocket a mercenary to get a refill. Or after doing a few assassinations you get a larger amount of max knives to hold.
No, you cannot pickpocket in Assassin's Creed Bloodlines. In Assassin's Creed, there was no need for Altair to pickpocket anyone but thugs, and that was for throwing knives. However, in Bloodlines, you can acquire throwing knives by visiting Assassin Bureaus.
In the original Assassin's Creed: -Sword -Short Blade -Hidden Blade -Throwing Knives -Apple of Eden -Fists
go to a blacksmith for armour, weapons and ammunition - throwing knives, bullets etc. and go to a doctor for medicine and poison
One may purchase Puma knives directly through the Puma Knife Company or through Calibex. These are hunting type knives and most reputable hunting shops carry them.
Automatic sliding 'stiletto' or switchblade knives are illegal in most US states, as are double bladed knives (daggers). Pennsylvania is one state where this is the case. **stiletto originally referred to a thin double bladed knife, often used by assassins. The blade was thin enough to slip between pieces of armor or mail.
All knives will dull overtime if not properly cared for.