Board Thread:Suggestions forum/@comment-27630683-20160529020550/@comment-26236093-20160529065307

The Lord of Minas Morgul wrote: I think it was just the helmets...

If that's true, my suggestion is that Tower Guard helmets are given a slight re-color, crafted like a Swan Knight helmet with mithril, and given mithril stats. Everything else stays as normal Gondor armor.

Indeed, it was only the helms of the Tower Guard that were wrought of Mithril. Additionally, this has been suggested many times previously and is somewhat up-original.