LONDON.- The saying goes that one waits an eternity for a London bus to arrive, only for two to eventually show up at the same time. Dot Boughton, Finds Liaison Officer (FLO) for Lancashire and Cumbria, is probably beginning to feel that the same rule applies to Viking silver hoards. It was only in April of this year that a hoard of over 90 coins and hacksilver from Barrow-in-Furness, Cumbria was reported to Dot. For any FLO, and indeed for the British Museum, which provides expert advice to enable the coroner to hold an inquest into the case (as required under the Treasure Act 1996), this represented a lot of material to work on. Not since the discovery of the Vale of York hoard almost five years ago had so many Viking-age artefacts and coins from one find been reported as Treasure. But no sooner had the coroner concluded his inquest into the Barrow case than Dot was on the phone to our office again with news of an even