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I would think you probably want to use some kind of camera lenses’ special cloth. I wouldn’t want to use any kind of window sprayers whatsoever, because it is probably do some major damage to cover jacket for that matter.
Perhaps a slightly few droplets of lukewarm water and a piece of cloth like lens cloth and gently wipe it off.
Does that help, no?
I handle all of old photos or printed photo pieces from my HP Pro B9180 printer, I usually use white cloth gloves to handle these materials. Because I treat them like… museum-quality materials. I know this may sounds silly or absurd, but that is how i handle these materials with extreme care.
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