I have a few of the reference books on collecting jewelry, but they only dedicate a couple chapters to OLD jewelry.
Does anyone know a good reference book that is totally dedicated to OLD jewelry??
New/Old auction catalogues are useful as well. I just picked up an old Sotheby's catalogue of Andy Warhol's jewelry collection that was auctioned in the 80s. He had many Art Deco pieces and an array of old cuts. Fun stuff!