Iron lock and set of keys owned by members of the Ellis family

The padlock is accompanied by two different keys on a metal key ring (c). There is a cast iron key that has a flat blade with a square or notch like serrations on both sides, and an oval bow with large holes side by side. This key opens the lock. There is also a cast brass skeleton key that has a cylindrical shaft with a rectangular blade at the end with rectangular notches or serrations. The bow is an oval with a double concave hexagonal center slot flanked by two ovals. The third item attached to the ring is a circular flat iron tag.