OK - so I thought owed the forum closure not his.
I received differing opinions but cam to the conclusion that it was probably NOS - UNTIL - looking at the comparison of a MB repro to an HSA restoration on the HSA website I saw the comparison of the more purple Full Moon Fever inserts on the repro he was showing to the more blue ones on his rest.
I was convinced this was the smoking gun and sent an email to the seller with this "definitive" data!
Less than 5 minutes later I received the following email from a very thoughtful, thorough and knowledgeable Brian ( I will note in my defense that I don't know Brian; sent this a few hours before; and had no idea if he'd respond):
"I did look at your picture link. That playfield is an original. The IPB ones have a different lagoon cutout and does not have frosted inserts. Both Williams and IPB used 'Weber' wood. Your playfield has factory looking mylar on it. IPB never installed mylar on their reproduction MB playfields. Some original MB playfields have different colors of blue and purple so the colors on your NOS playfield do match up to some of the Williams MB playfields in my database. I have a lot more pictures of MB playfields (both IPB and originals) on my computer than what is shown on my website that I can use as an reference. The registration silkscreen marks do appear on some of the original MB playfields. I usually sand the lower ones off when I do a restoration.
Mirco also made MB reproduction playfields and those are easy to ID."
BTW - I attached the picture that compared the inserts. The one on the left is upside down and the NOS(more purple) and the one on the right is my original.
Hope this helps others in the future
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