In general, they shouldn't be using gloves. The International Federation of Library Associations and Institutions -- actual experts in paper conservation -- published an article in their then-newsletter, International Preservation News, evaluating the risks and benefits of white-glove handling of archival rare paper. Here's a link. The article in question is "Misperceptions about White Gloves". Essentially, CGC employees should be keeping their hands washed and thoroughly dried. If there's