This is an original pair of 1960's Buick Aluminum 45 Fin Front Brake Drums/Hubs.  Pretty good looking condition, but do have some normal wear, some lite surface rust in areas, some pitting in areas and some pitts on the fins in areas-see photos.  Brake area measures approx 12"-12 1/16" in diameter-see photos.  5 on 5" bolt pattern.  Both are Right hand thread.  Not sure of exact years or models these are correct for.   Often used for custom projects.  Please check my other auctions.