Hy guys!
Since two years, the 10/10 sundering for sword, axe and bow are deleted and changed into 20/20, wich is most effective. But, a lot of people are selling 10/10 for sword for 20-25k to collectors. Normally, we cannot drop 10/10 anymore, but a quest in ascalon give a sword wich have a 10/10.
The quest is giving by Ascalon Guardian Hollis in Asclon. You have to do the first cooperative quest in GW (Great Northen Wall) to have this quest. The quest is really easy but you can do it once by character. You can also create a new character to do this quest

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When you have finish this quest, the Guradian will give you a sword with the 10/10

Then sell it to a collector in Kamadan for 20~25k!
Bye!
PS: Collector are not NPC, they are just people who want to have a amelioration wich doesnt exist.