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 Replies: 7 / Views: 1,382 |
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Valued Member
United States
373 Posts |
I had my annual NGC voucher for 5 submissions...and I was going to the FUN show...So I couldn't resist gathering a few coins to submit for grading. Two were coins I had purchased raw and well-circulated. Both graded problem free (whew!). Three were Half Cents that I had cracked out of holders a while back, and here are the results: PCGS AU55 --> NGC AU55 old, white ANACS XF40 --> NGC XF40 old, white ANACS AU55 --> NGC AU58 Overall, these 3 data points agree with my previous data showing that grades are fairly consistent across the TPGs: https://goccf.com/t/158504Next time around, I have a few slabbed coins I am considering for crossover - something I've never done before. It will be interesting to see if the trends are any different. |
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Valued Member
United States
105 Posts |
Thanks for the information.
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Pillar of the Community
United States
4337 Posts |
it could also help to know the dates of the coins being surveyed and analyzed. great information nonetheless
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Valued Member
 United States
373 Posts |
This group was all Classic Head Half Cents, later dates, no keys or interesting varieties. |
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Bedrock of the Community
United States
17884 Posts |
It could also be important to know when th original grades were assigned, and there is alo the problem that conclusions based on just three data points are probably highly speculative
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Valued Member
United States
373 Posts |
Conder101, I totally agree with you. That's why I keep a complete database, which I've posted about in the link I gave above. I now have data on 35 cracked and resubmitted coins, various types, grades and TPGs. There is not enough data to speak about any particular type/date/grade/etc. However, two trends seems clear: (a) Grading is fairly, but not perfectly, consistent, with most coins regrading within one grade of their original grade. (2)I don't see a difference in performance between PCGS, NGC, and old, white slab ANACS.
These additional three data points fit with those trends - but of course in and of themselves are not conclusive.
Unfortunately, I do not have information about when the coins were originally holdered, so I don't have any insight into trends with time.
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Pillar of the Community
United States
2815 Posts |
Thanks for this info, ProfLiz. I haven't been at this long, but my impression has been that the top 3 TPG companies are consistent with each other. Whether the coin is in an NGC, PCGS, or ANACS holder makes no difference to me. I trust the grade unless there is an obvious error. The only reason I stick with NGC and PCGS is because I just don't like the ANACS holders. |
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Pillar of the Community
United States
2540 Posts |
You did great on the grading, congrats
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Replies: 7 / Views: 1,382 |
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Posted 01/26/2014 10:05 am
