a rusted iron key

Crudely fashioned out of dark iron, this key's age is shown by its poor condition. Chunks of it have rusted off completely, and rough handling may be enough to break it.

It is a rusted iron key.
It weighs half a pound.

You identify a rusted iron key.
It is an unsellable key.
It weighs seven ounces, and it is worth about one celeb.
Its keywords are key, rusted, and iron.