1.22c Item Speculations

[Zdenka]

You're probably looking for this:

Enchiridion ------ A leatherbound copy of the teachings of Halone─the holiest of Ishgardian scripture.
Allagan Band-----An old, weathered ring carved with ancient runes thought to be of Allagan origin.
Oschon's Finger-------When a thief is caught, a common punishment is to remove a number of fingers proportional to the value of the items stolen. These fingers are then taken and blessed by annointed priests of Oschon the Wanderer. It is thought that, when carried on a journey, these fingers will point out the safest routes, and are therefore cherished by caravan drivers and travelling merchants throughout Eorzea.

Were those taken from a .dat tool?

Typically the items in the .dat's are not obtainable in game until a patch notes says they are (such as Relic weapons).

1.23 has content involving the 12 Mytho's, those items sound like they are part of that instead of the relic quest.

--Edit

Oh I see, they are in the 1.22b patch notes, interesting.

That should mean they were also obtainable in 1.22b though, probably a stage of Relic that was implemented, but just no one was able to reach.