Colin Le Ray said the closure between 08:30-09:00 GMT was a precaution while investigations took place after "one or two wheel marks" were discovered.

BBC: Guernsey Airport shut over wet paint concerns

Just metres away from where the coffin was discovered was something else which, if dug up in the garden, would probably be thrown away - a squashed, grey pot, hand-moulded, not made on a wheel, and with a crude decoration of lines and punch-marks.

BBC: NEWS | UK | Bridging London's lost centuries