We have an Eagle lamp finial vintage ite.  It measures about 1 1/2" in H x about 2 1/4" in w across the lower wing points x about 3/4" in d.  The bottom is about 5/8" across with the center threaded hole being about 1/8" across.  It does not stick to a magnet - I'm not sure if it is brass or not.  There is a bit of wear/tarnish on the finish.

Eagle Finial Lamp Vintage Item