An extremely rare sample of Plutonium in the form of a cold war era smoke detector source. The source was originally contained inside a RID-6M type Soviet smoke detector. It contains only 0.5 uCi of Pu-239 and is permitted to own due to the small amount of material present. These are EXTREMELY hard to find outside of Russia due to Russian export laws. The third photo is for reference only and describes the manufacturing process used to make these sources. Sorry, NO international shipping.