Return of Reckoning

Hi all, Where can I find lvl 50 Fragments for Talisman making? My Talisman Making is 68 while my Salvaging is 79. I ran out of lvl 50 fragments to make Talismans, but now I seem unable to get any more. I tried farming lower level zones for items to salvage, but they seem to only give lvl 75 fragment...