How is this calculated?
Is is based on the number of different members claiming to own a coin, or is it based on the total quantity of said coins claimed to be owned by members?
I ask, because on face value a coin listed with a rarity index of 57 is not very rare, not that much rarer than a coin with a rarity index of 43, but trust me there is a big difference between a real Lundy Puffin and an Olympic series 50p! And a Kew Gardens 50p is MUCH rarer than an index of 43 would imply!
Please don't think I am criticising, I appreciate this is at the beta test stage.
Matt
