This is an excerpt sent to me by a metal detectorist author: In 1983, when the one-pound coin began to circulate, the Mint produced 400,000,000. Tucked away on the inner pages of a Treasure Hunter issue for that year there's a report of the first lost 1983 one-pound coin turning up as a detector find. Who knows how many of those four hundred millions have slipped from pockets and purses, or down the backs of sofas, since then? What I can say is there's a fair chance that some are now worth .. well, considerably more than one pound will have to satisfy your curiosity for the present, because the collector who bought the specimen I'm referring to declined to say how much he paid for it. Presumably he hopes another might be offered. So please be on the look-out for a 1983 one-pound coin which has what I understand is termed a “coarsely grained†edge - in other words, with fewer vertical lines on its edge than most other one-pound coins. The explanation is thought to be that part of a die used to produce some of the foreign coins the Mint also makes was accidentally used to produce a batch of 1983 one-pounders. Anyone heard about this coarse £1 coin? Syl? Kuhli?