Why do you have such complicated terms for your coins? Ours are just ca= lled by their value - 20p, 50p, etc.
And I don't think we've had coins made of anything anywhere near the coi= n's value for a long time. Although they did recently (without announci= ng it) change the 10p coin to one that was slightly thinner/thicker (I f= orget which) and a different metal to save money. This played havoc wit= h machines that take them.
It particularly annoys me as I have a coin counter that sorts the coins = and creates a "bank bag" (as in a particular amount - 20 x =A31 etc that= the bank likes paid in at once) of coins in each tube, simply by the to= tal thickness of the pile. With the new 10ps it gets it wrong each time= , so I just grumble at the bank teller when she says I've given her the = wrong amount. I can adjust it for the new coins, but a the moment we ha= ve some of each.