a burnished iron key

This iron key has somehow been burnished, creating a surface that appears shinier than normal. It is average-sized, and has a loop on the handle that allows it to fit on a keyring.

It is a burnished iron key.
It weighs a few ounces.

You identify a burnished iron key.
It is an unsellable key.
It weighs four ounces, and it is worth about six busc.
Its keywords are key, iron, and burnished.