Mine is a 92' also...I know my windshield is original (and sandblasted by the 10 yrs.) and has Gottlieb D's signature and 'A MB product' slogan on a small white rectangle that is inside mounted at the bottom corner of the passenger side...

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Jim

1992 500E
2007 CLK63
2003 Audi RS6
2001 Audi allroad