I bought some NOS driving lights recently and they have a milky white residue on the INSIDE of the glass lens. I've tried soaking them in glass cleaners, methyl hydrate and laquer thinners to only remove about 50% of the haze. They were wrapped in newspaper when I got them. Circa 1994.
Any suggestions on how to claen them? I can't separate the glass from the housing to get in behind the glass where the problem is, btw.