I removed the front from my 108 instrument panel and cleaned the glass. Not real tough and made a huge difference in appearance. The taped device appears to be the dash lighting reostat. They are problematic and many wire a jumper on them to operate at full brightness. This may be what happened here. They are still available for purchase if you like dimming the dash lighting.

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Ron
1972 280 SE 4.5
2017 Lexus ES 350
2011 Ford Escape
2006 Chevy Silvarado