Where do Tall Shields drop? (NF)

Hi! I'm looking for an inscribable Tall Shield.
since i haven't seen any drop and i can't seem to find any info on wiki, i just figured i'd ask around ^_^
i've seen a few ones around so i'm sure they exist, i just need to know where
any help apriciated, thanks!

http://gw.gamewikis.org/wiki/Shield says Tall Shield is core meaning they can drop anywhere & in any chapter.
Best bet is to kill warrior-mobs that use tactic skills, but I have yet to see a single Tall Shield drop in NF.

ye i figured that much too =/ was just wondering if they dropped in any special area or something.. thanks though ^^

got mine in a keyless treasure, in the mirror of lyss, r9 strength =)

am i reading this right.. a strength tall shield? wow thought they only Tactics?