There is only one in one of them and 3 in the other. I was never trying to hide the fact that there was missing pearls. That is why I had such close up pictures. But trust me unless you are really looking you can't hardly see them.
Oh and I never added that I think they "may" be brass. The only reason I think that is because if you look close to the back you can see green corrosion and that only happens on brass and copper.