I have a metal soap dish.  I'm not certain what type of metal it is made of - it will not stick to a magnet.  It measures about 4 1/4" in W x 2 7/8" in D x 3/4" in H .  It is in rather poor condition as far as the finish goes with multiple scratches and finish missing.  It is marked on the bottom "Made in England".

Metal Soap Dish Vintage