A 5 inch gauge "Metre Maid", the six-couple derivative of "Sweet Pea". This one circulated all day, as we picnicked in the middle of the track at lunchtime there was a chance to watch a super display of driving - the owner firing at the same point on each lap, as he slowed to drop off and collect passengers the pop safety valves opened for a few seconds in the same place every time round, shutting as soon as he got away.