Is a dual grade on an NGC slab their error or perhaps normal for them at one point in time?
islemangu
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On NGC's verification site only the MS64 grade pulls up the below slab in question.
Maybe their intention was the MS63 grade for the reverse? (similar to the old ANACS photogrades with separate Obv and Rev assigned grades)
Thank you for any help from the depth of knowledge available here. 
Hail the gift of memory in this fifty-second state. Who sold me down the river and shafts me while he waits. Outside the gates of Eden, star spangled and so late.
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MetroD
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@MetroD said:
I reached out to NGC CS and asked.'If/When' they respond, I will share the info here.
NGC CS responded to my inquiry about the "dual grade" on 8424515-007. According to the rep, it was a "mistake".
When I made my inquiry, I made it clear that I was NOT the owner. Despite this, when NGC CS responded, they offered a resubmission to the owner, which would allow them to correct the "tag" and 'cert verification'.
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Answers
How does that even happen?
Keeper of the VAM Catalog • Professional Coin Imaging • Prime Number Set • World Coins in Early America • British Trade Dollars • Variety Attribution
I've seen some information that NGC looked at dual grading but never really accepted it other than in a few test cases. I'm interested in what other members know of this interesting slab. It only comes up under MS64 when looking at it on NGC.
Just a simple mechanical error by the person who input the data to create the label, no big mystery or crazy conspiracy.
My Collection of Old Holders
Never a slave to one plastic brand will I ever be.
Probably. Except, why isn't the grade a drop down menu? And if it's just an entry field, why would it allow 5 digits?
All comments reflect the opinion of the author, even when irrefutably accurate.
The data entry isn't typing the grade on a keyboard; it's clicking on the grade. There's probably some manual override for some of the fields printed, but the grade?
Keeper of the VAM Catalog • Professional Coin Imaging • Prime Number Set • World Coins in Early America • British Trade Dollars • Variety Attribution
The prophecy spoke of this in the Book of Coin Forums, Page 1, Thread 17.
“...and behold a pale parchment and his name that sat on him was Four-Digit Grading Scale, and Registry Chaos followed with him”.
Maybe Sybil was one of their graders.
Sounds like excellent questions for someone that works at NGC and has first-hand knowledge of their data entry system. In the past NGC used some letters next to the grade, W for white, T for toned, perhaps others. So it seems that there are fields or extra digits adjacent to the grade available to the person doing the data entry.
As I do not work at NGC I do not have first-hand knowledge of their data entry system, neither now or when the coin posted by the op was slabbed. As such I cannot say exactly how it happened, but what I do know is that NGC does not split grade so that simply is not a possibility. In the past NGC used some letters next to the grade, W for white, T for toned, perhaps others. So clearly there are fields available adjacent to the grade for data entry use.
But I do have a coin in my collection that had errors on the label as well as database errors when I bought it from an auction, I think it was a Heritage auction but not positive. While the label showed the correct grade of MS64, when you did a cert check the NGC database listed it as AU64. Additionally, the certification number brought up a completely different coin, different series and different date. It seems logical that either or both the grade and the cert# had to be entered manually for that to happen. After several conversations with NGC CS I learned that my coin and the one the cert referenced were sent in for a reholder together by the same submitter, it was at that time the information was fubared between those coins. As I said I have no first-hand knowledge of the NGC system, but from my actual experience it is clear that the individual tasked with creating the label does (or can do) more than just dropdown menu options when creating the label.
My Collection of Old Holders
Never a slave to one plastic brand will I ever be.
Ms 64 dmpl for example may be a reason
Mechanical errors seem to be on the rise and probably correlate to the workload of data entry employees...
I've hit the jackpot twice in 3 submissions. First one was a properly graded and slabbed coin that had all the correct info on the label but was entered wrong on the hosts system: Link to forum post and it still required me to send in the coin. The positive was I got the gold shield upgrade.
I have never seen that, I guess it is an error.
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I reached out to NGC CS and asked.
'If/When' they respond, I will share the info here.
I think that split grading is absolutely wonderful!
I have a medal that was split graded, the insert says MS63 and the website says MS62. It really gets confusing because I grade it MS65.
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