Thanks for the advice. Good advice to take onboard - especially separate key postage

So we think what happened here is somebody along the freight lines saw that it was a pinball machine matching their system, opened it up, swapped boards around and left it in an obvious swapped state due to lack of uniformity, wrapped back up and away it went? Seems a very strange thing to happen

 

Perhaps relaying this message to the other forum to see if there are any leads on this matter would be in order.