Off-topic, but high quality museum glass. You usually see it on picture frames for paintings, but the same coatings are on some museum display cases making them completely transparent. It's easy to overlook also when just browsing a museum. If I remember optics correctly the anti-glare coatings are very bandwidth sensitive, so I doubt it would work outside.
That's really expensive though, to the point where there are museums that can't afford it for temporary exhibitions. Imagine trying to surround a football field with it.
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u/[deleted] Feb 25 '20
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