NGC Crossover Analysis By Generation! Please Help and Contribute!

Clio

Hello forum goers,

I am just gathering some data to do with crossovers from NGC to PCGS.

As a disclaimer I should mention the information gained from this will be subject to bias and skewed in ways I cannot over come. Whether that is simply the fact that people are less likely to try and cross coins that don't appear they will cross or I simply cannot get enough data to make any realistic conclusions.

Below is an example of what information I am gathering and will be sharing it via a spreadsheet on google sheets.

That feeds this little box here:

Link here: https://docs.google.com/spreadsheets/d/1d0JK8xVdhD-TvHXSUoRndalrmiUUXTFb_fU6R4NLMn8/edit?usp=sharing

If you want to help I need at the very minimum 3 things from you.

1. What the Coin is
2. The Holder Generation
3. The Grade Before & After

And remember DNC results are just as important as upgrades, you don't get a prize from me for having a high upgrade rate.

Any additional information in the spreadsheet you can give is appreciated of course but not required.

For reference when confirming holder generations please see this link: https://oldslabholders.com/post/ngc-slab-generations

Many holder generations require the reverse holo to differentiate them. If you are unsure between some please let me know.

If you wish to provide feedback but don't want the details visible publicly I will retain the information on a backup spreadsheet and the only information from it shared will be the crossover rates it helps generate.

Thanks in advance to anyone willing to help me out!

-Clio

Exbrit

Very interesting project. While most of my crosses have been in the other direction, I’ll look to see if I have any for your project.

Clio

@Exbrit said:
Very interesting project. While most of my crosses have been in the other direction, I’ll look to see if I have any for your project.

Thank you that would be greatly appreciated.

JohnnyCache

From NGC
Crossed this:

.
To PCGS

Clio

@JohnnyCache said:
From NGC
Crossed this:

.
To PCGS

Thanks for the feedback!

Abuelo

@JohnnyCache based on the picture alone, the 62 seems a bit of a punishment.

WCC

@Abuelo said:
@JohnnyCache based on the picture alone, the 62 seems a bit of a punishment.

With the coins I collect, PCGS seems to be more conservative, but the sample size is small since I don't own many in PCGS holders.

Here is one which is graded AU-50 which I think is noticeably under graded.

https://auctions.stacksbowers.com/lots/view/3-IW7JI/bolivia-2-reales-1770-pts-jr-potosi-mint-charles-iii-pcgs-au-50-gold-shield