It is a bit key for a warded lock. And it is all there and complete — it is not a skeleton key.

And before anyone thinks disparagingly of wards, they are still useful. For example, wards in the keyway of Yale's pin tumbler lock locate the key more precisely, and stop it slopping up and down, as the original feather key could. They can also hamper picking of pin tumbler locks (if the [bullet] wards are constricting enough) and other locks with movable detainers.