Vintage Gold Tone Butler Moon and Stars Round Clip On Earrings

vintage moon and stars round clip on earrings brand is Butler and they are marked on the backs, as well as FAC on the clips which I believe stands for Fifth Avenue Collection these are so sparkly and fun with rhinestone stars and man in the moon faces they have the padding on the clip in great vintage condition ~ I have cleaned these, but there is still a small amount of stubborn verdigris on the backs only measures approx 1.15" diameter