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<p>[QUOTE=&quot;calcol, post: 2954019, member: 77639&quot;]As you may be aware, the important factors for ranking sets in the PCGS registry are the weighted GPA (grade point average) and completeness of the set.&nbsp; Each coin is given a weight from 1 to 10 with the highest weights going to the rarest and most valuable coins.&nbsp; The grade of the coin is multiplied by the weight;&nbsp; then the sum of (weight x grade) is divided by the sum of the weights to obtain the weighted GPA.&nbsp; In some cases, bonuses or deductions are applied to the grade before weighting.&nbsp; To account for completeness or lack thereof, the sum of (weight x grade) is divided by the maximum possible sum of weights to obtain the set scores.&nbsp; Set scores are used for ranking sets.</p><p><br /></p><p>The registry lists the grade of each coin, the weighted GPA of the whole set and the set score.&nbsp; However, I have been unable to find a list of the weights for each type of set.&nbsp; I&#039;ve searched the PCGS website and elsewhere without success.&nbsp; Does anyone know where the weights are listed for each type of set or is this something PCGS tries to keep to itself?</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>

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