@lovejet: Ahem, from post #650 slightly above yours:
Originally Posted by
broadreach
Just to forstall any conspiracy theorists who might surface on seeing the pristine nature of the 738 CVR after three weeks buried in the undergrowth, it is said to have been wiped off and replaced in the hole for the photo. For Widgeon, one assumes that printed on the other side would be "Do not open".