Over the past several weeks, thanks to both my uncle who was flown to London to inspect a machine for his company and to TRINIST who sent me some to cover the postage for his Nashville concert CDs, I have a small collection of of British coins, and I know the British are known for their slang names for everything, so I'm wondering what are common names for the circulating coins in the U.K., other than just 10p, 20p, &c, like, I know the half-pound coin (50 pence) replaced a tenbob note, and the 5p coin is the equivalent of the shilling; the one I'm most interested in is the 20p because I don't know what to call it - 20p seems so awkward, and it's certainly not a quarter - so other than the seemingly logical "fourbob", does it have a common name?