Whilst not strictly antique silver specific I came across this interesting article of value for all antique collectors. You can click the link below to visit the article and its full of useful information such as... the family historian’s Hippocratic oath is “do nothing you can’t undo.” On the surface, this seems simple enough: You don’t amputate a page of the family Bible because it’s dirty.
It also lists what it calls its tested prescriptions for preserving 10 common kinds of family heirlooms. No matter what antique you collect its worth a read, just click the link below.
http://www.antiquetrader.com/article/preserving_your_family_heirlooms