This is a fine signed Czech rhinestone brooch. The metal is gold plating over brass. The plating still looks great. The rhinestones are of many colors and many shapes. The pin reminds me of a fireworks display. It has red, green, blue, yellow and clear rhinestones. All of the rhinestones are set with many prongs and remain bright and clear. It does not appear that any have been replaced. The brooch measures 2 1/4" round. There is a safety clasp that holds well. The piece is signed " Czecho Slavankia" I think that is correct but it was hard for me to read, Condition is excellent. I would date this fine brooch at c1930's-50's.