The institution diagnostic scale for fidelity of observation.
Class I: AutopTic
Artifacts received and documented firsthand under conditions the institution considers verifiable. Standard cataloging. Held in the open collection
Class II: Parallax
Artifacts that yield different readings depending on observer position. The institution finds this property worth noting. Held under continued observation
Class III: Aprocrypha
Artifacts whose origin cannot be traced and whose authenticity cannot be confirmed by available methods. The institution holds these in particular regard. Kept in the apocryphal collection.
Classifications are provisional and subject to revision.