There are two top tier grading companies that are widely accepted in the precious metals industry as being the two leading grading companies; Numismatic Guaranty Corporation (NGC) and Professional Coin Grading Services (PCGS). We would recommend members to choose coins graded by these companies. Coins graded by these companies generally trade to a premium over coins graded by other less popular grading companies.
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Lovely set, a nice one to hold, especially the gold coins. I like the 2 1/2 shillings, seems in brilliant condition as well. For grading of silver coins, need to consider cost n benefit, and in my opinion, unless you would like to sell it.