The one SophieMarie posted was popular in the 1940`s and 50`s !! That was back when everyone was having baby shoes bronzed !! I remember many of them,, but the other one I think is a bit earlier,,maybe 1930 or so !! I am just going by the way it is made !! It would be either brass or bronze coated to create the verdigris !! Looks like it was outside for quite a while or in a garage,barn ect where the weather affected it !!
Don`t clean it !! That verdigris adds to the value !!