Collector weapon
From Guild Wars Wiki
Collector weapons can be obtained from collectors in exchange for trophies. For instance, Merin Trollsbane will offer staves or a sword in exchange for five Mountain Troll Tusks. Collector weapons can be upgraded using weapon upgrades. Additionally, certain Elonian collector weapons may be upgraded with inscriptions.
Collector weapons may be dyed and salvaged. Some collector weapons, especially those in Ascalon, already contain weapon upgrades that may be salvaged. For example, the Fiery Axe Haft may be salvaged from the Fiery Flame Spitter. Modifications placed on collector weapons can be salvaged, at a risk of breaking the item. Some collector weapons may also be salvaged for raw materials. Finally, others may not be salvageable at all.
While the weapons obtained from collectors are not rare, they are usually perfect, and thus are a boon for cash-strapped adventurers and their heroes.
List of perfect collector weapons:

