In a sign of the times, the most commonly lost items are mobile phones, where it used to be bowler hats and umbrellas in her early days in Baker Street. More unusual lost items to come in include a 14ft boat, three holdalls full of sultanas and various items of furniture. "Working here, nothing surprises you," said Ms Beaumont. "False legs and dentures are quite common, as are armchairs, children's cots and pets.