What can you say these coins are something special I have never been to fond of opal but the ways the lunar opal series sparkle from the light the Perth mint has out done it self. With a low mintage of 5000 these coins always go up in value the longer you hold them this is a 2018 year of the dog 1 oz silver 9999 coin at the time of release these sold for around the 99 dollar mark (Australian) but just two years later I sold one for almost 225 dollars I still have two of these in my stack as they are great investment. The Package they come in is great with a nicely placed led light which lights up when you open the case this coin is part of the first series and the second series started last year.