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Wednesday 20 December 2017 at 20:49
Quoted from chippe01:That looks like a footprint on the envelope.
Looks like the bubble wrap portion is showing through from pressure of some sort...maybe they sat on it with dirty clothes. Definitely not handled nicely either way.
Source: http://pinside.com/pinball/forum/topic/official-2017-pinside-secret-santa-participants-thread/page/8#post-4133271