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Sunday 4 March 2018 at 03:41
Quoted from vireland:We have one of the first 20 off the line with a mid-may build date and ours is blue (no sticker)...
lol, well I guess it's a mystery! But, I do remember seeing other people in one of the Dialed In threads talking about the blue sticker.
Source: http://pinside.com/pinball/forum/topic/dialed-in-owners-and-fans-club/page/63#post-4261975