XIVDB has updated

[Ferocious]

Some new information is revealed, such as:

Rowena's Token (Soldiery) are purchased for x130 Tomestone of Soldiery.

You use these to craft the "Weathered" weapons. Then with "Weathered" weapons, you have to find this material called "Sands of Time" to craft a better weapon.

EDIT - More information:

Not sure if its already known, but looks like even the Tomestone of Soldiery gear (i100) can be upgraded to i110 with this same material called Sands of Time. Hmm... interesting.