Display shield Anti Glare (Sega-Stern)
Special Production of Anti Glare Displaycovers
Very nice Effect
Ref-Part Stern 545-5884-00-AG
Look here the Difference Original between Anti Glare Version
Austin Powers has anti glare Displaycover & Anti Glare Backglass
Here you can read a Test
http://www.pinballnews.com/learn/antiglare/index.html