Vintage Landau pearl enamel rhinestone brooch

Vintage Landau pearl enamel rhinestone brooch Landau is known for making costume jewelry that looks like fine. This is no exception. A lovely pearl center surrounded by shiny black enamel and rhinestones measures 1.25" on all sides, and is very 3 dimensional, like a pyramid In almost perfect condition, there is a tiny spot on the pearl, I can only see with magnification marked NLH (initials of founder)