Antique/Vintage? Silver & Lucite Yellow Rose Brooch

For auction is this either antique or vintage yellow rose brooch. The rose is made from a hard plastic that i'm sure is lucite. The stem and leaves are made from a silver tone metal with no h/marks so will be listed as a silver tone metal. The brooch measures 5.7cm long. All items are from a smoke free home. Thanks for looking and please take time to view my other items. Good Luck.