These 6 are all layered with. There are a few reasons why these are so rare. Secondly, there are lots of collections available which have the first 6 coins but as the final coin was SOLID 9 CARAT GOLD lots of people didn't complete the collection. You simply won't find these in better condition indeed if you find them at all.Fourthly, this comes with all 7 Certificates of Authenticity (COAs) again in MINT CONDITION. These are simply stunning and is definitely an investment item. With this being an investment if I were in your shoes I would want to know. What is your percentage feedback for all these sales? What if something goes wrong in post? Some other things you may also like to know. I have nearly 400 followers at last check. Be careful with these to ensure you are comparing like with like as there are different versions - there are collections where last coin is solid gold (this one), collections where last coin is fully layered gold (I have one of these for sale too) and a silver version where last coin is pure silver. If you have any questions please just ask - even if you choose a different set than mine, I want to ensure for this sort of investment that you are not being'ripped off' so don't hesitate to contact me if you think I can help. Be quick and good luck!