From the Virindi Masks quest introduced in Festivus.

Broken Virindi Profatrix Mask
Value: 0
300 Burden Units
A mask taken from the defeated form of a Virindi Profatrix. The cowl of the mask is a lightless black that seems to swallow all light that draws near it. The metal of the mask shows none of the false emotion indicative of the Virindi. Perhaps a friendly Virindi, or a human who studies Virindi, could repair it for you?


Special Properties: Attuned, Bonded

Notes

You give Leopold Broken Virindi Proatrix Mask.
Leopold tells you, "Anomaly inconsistent with structure. Form devoid of contact. Conclusion, disruption to the Singularity. I must-"
Leopold gives you Virindi Profatrix Mask.
Leoplod tells you, "Enjoy your prize meat- err human."