I'm not positive of the full details, but there are dragons in the tower (red, yellow, and blue I believe) they drop some of the armor. But it's very random, and there's a couple other monsters. I believe you can get most of them though in the room after the 5 dragon statues. But I'm not positive on the full details, if you check them ain sites FFIII section I believe they have a bit betetr info, or if anything check the walkthrough around that area. It'ld be much more helpful then me.