Vintage Signed MJ Marie Jennifer Christmas Tree Brooch Pendant

This beautifully crafted Christmas tree brooch pin is signed by MJ (Marie Jennifer) and has a loop on the back so it can be worn as a necklace as well. My guess on the silver tone finish of the brooch is that it is most likely silver plated. There was tarnish on the piece which was easily cleaned. The pin measures 2.5" tall and 2" wide and is in good vintage condition. Please review all the photos.