Regarding white gloves: from a professional picture framer and art appraiser’s point of view, the article mentioned earlier is excellent (Misperceptions about White Gloves by Cathleen A. Baker and Randy Silverman. http://archive.ifla.org/VI/4/news/ipnn37.p).It is not practical to approach framing paper art wearing gloves. Also handling art during an appraisal inspection is not always easy while wearing gloves. As mentioned in the article, gloves can pick up dirt and oils. It is also not always possible have a firm grasp on the object you are inspecting. I have found that clean hands are generally adequate in handling art.