In reading The Guide to Evaluating Gold & Silver Objects, I have discovered a wealth of information on inspecting, testing and hall marking not readily available to scholars of silver and gold. Defining the various quality marks including the meanings of electroplate thickness was of great value, since much of this data would have been very difficult to locate. The spiral binding also allows for hands free instruction when performing any of the tests. I would like to recommend The Guide to Evaluating Gold & Silver Objects as an essential reference for anyone involved with appraising, collecting, dealing, or manufacturing items of silver and gold.