an ivory necklace

[Taziar]

You wear an ivory necklace around your neck.

* HP:Healthy MV:Fresh > exa ivory
It is an ivory necklace.
It is in pristine condition.

* HP:Healthy MV:Fresh > l in ivory
necklace (used) :
Nothing.

* HP:Healthy MV:Fresh > she
You don't seem to be wearing a proper sheath.

An ivory necklace has the capability to sheath a weapon in it, but will not accept anything.
Intended?
Bug?
Is there a weight restriction to items in sheaths I don't know about?
I believe an obsidian pendant used to be able to sheath also and the sheath was fully removed from the item, was ivory necklace an oversight?
Coding?

[Elysia]

It's been given a sheath, just no weapon class has been assigned that it will sheathe.