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Set Rating/Grade Points, how are the point calculated?

flog31flog31 Posts: 56
in PCGS Set Registry Forum


I need a refresher on how the set rating /grade points are calculated. I thought I knew, I did at one time. Specificly for Lincolns with bonus points for red, etc...

Thanks
Gene

Comments

  • clackamasclackamas Posts: 5,615 ✭
    PM me with your email address and I will send you an Excel spreadsheet that Paul P (Sonofgunk) put together to figure this all out for you. Its pretty cool since you can upgrade a coin and see what it does for your set.

    Cheers,

    brian
  • fcloudfcloud Posts: 12,133 ✭✭✭✭
    Brian,

    Can I PM you, too. I would like to get a copy it you don't mind.

    President, Racine Numismatic Society 2013-2014; Variety Resource Dimes; See 6/8/12 CDN for my article on Winged Liberty Dimes; Ebay

  • flog31flog31 Posts: 56

    I am looking forward to the spreadsheet. I am also interested in knowiing how to figure out the points "manually"... Can anyone help?

    Thanks
    Gene
  • sonofagunksonofagunk Posts: 1,349 ✭✭
    I am almost ready to post a new version
    eBay Error Sales
  • PopcoinPopcoin Posts: 492
    Ok, here it is:

    CG = Coin Grade
    CDB = Coin Deduction or Bonus from 'set weight table' (can be neg, pos or zero)
    CW = Coin Weight from 'set weight table'
    CTW = Coin Total Weight

    Coin Calculation CTW = (CG + CDB)*CW (do this for all coins in set)

    SW = Total of ALL Coin Weights from set weight table
    STW = Total of ALL CTW's from above calculations
    SR = Set Rating

    Set Calculation SR = STW/SW

    I hope this helps.

    Larry


    World Bear Coin Design Set
    20th C. Type Set
    1976 Proof Set
  • flog31flog31 Posts: 56
    Do you know when this spreadsheet was created? I am very curious, as at that time my grade points were only 21...!

    Thanks
    Gene
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