Metal Brooch 3- Elephants

Metal Brooch 3- Elephants This brooch is a silver color not sure why but the back and the pin seems to be a black color Not sure if this is rust or not - The pin itself seems to work fine It appears to be a metal type - No markings at all so not sure about it at all It measures A tiny bit over 2" and the tallest elephant is about --3/4 " Tall Please view all the pictures - I am not sure if this brooch is old or what age it is All stones seem to be attached -Please view all the picture's