Lab Test 48 - Great Adventurer's Treasure Sack

~Request by Stefa~
Testing: Great Adventurer's Treasure Sack rewards.
Question: How much do you need to open to get Vesper weapon?(Open 200-300)
Reason: I'm just curious.
Item Tested: Great Adventurer's Treasure Sack
Number of Sacks Opened: 50
Items Results:
Vesper Stormer - 3
Vesper Nagan - 1
Vesper Fighter - 2
Vesper Buster - 3
Vesper Cutter - 1
Vesper Dualsword - 1
Vesper Thrower - 1
Vesper Caster - 1
Total Vesper Weapons - 12
Total Dynasty Weapons - 22
Total Icarus Weapons - 16

which quest,instance or whatever you can obtain this?

which quest,instance or whatever you can obtain this?
It's from Treasure Chests.

http://legacy.lineage2.com/news/highfive_04.html (Scroll to bottom)

Thanks Juji! :)

I thought that we don't have those kind of treasure chests anymore?