Museum Glass: How to Clean?
Hopefully someone has some input here. I have several pieces with museum glass. As expected they have collected some dust, one was laying down for a month or so. I used a Swiffer to remove the surface dust and thought all was well. This morning I noticed what appeared to be small dots seen only in a certain light, purple-ish hue. It almost looked like someone sneezed on the piece. These dots do not seem to come off. So I used some TV screen glass cleaner and all that did was make more of a streaky mess with that blue purple haze to it. Keep in mind this isn't visible when the piece is hanging and viewed normally but it drives me nuts. Any knowledge about this or suggestions for truly cleaning this type of glass?
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