Mysterious Brooch/Pin Made in France???

Found this Mysterious Brooch/Pin attached to a purse I purchased at the local thrift store. It has an antique silver finish but I do not believe it is Silver. It has 2 different colors of enamel with rhinestones. On the back it has a nice clasp and is marked France with a fancy letter P above it. It has a small indentation below marking. However all and all it is in excellent condition. I haven't a clue to age but thinking new than 1950's. Again that is my thinking and could very well be wrong. It is a beautiful piece of costume jewelry. I thought it was a nice surprise to see that it did not belong to the purse even though it looked very nice attached to it.