First off, let’s clear something up: most £1 coins you find in your pocket are common as mud. But every so often, the Royal Mint decides to celebrate a thing—like a flower, a bird, or a random flag—and then forgets to make very many of them. That’s where the magic happens.
The key factors? Mintage numbers (how many were made) and survival rates (how many got melted down or lost in couch cushions). It’s like a celebrity coin chart—except nobody’s rich yet. Unless you’re holding the right piece of metal.