Toning on a PF69 UC NGC Graded Coin?

[Stuh]

I fully admit I know 'bob-all' about graded coins, but nevertheless have somehow got one in my bullion stack... A ninja panda that's crept in and I need help with him...

I've noticed that the reverse of the coin has what looks like black toning in places, on the very edge, right where the coin meets the plastic holder material. Can anyone who 'knows' graded coins help me with this - is this black toning normal on new-ish graded coins? Was it likely to have had this toning before it went into the case? And probably most importantly for me, does it affect the grading or the value in any way? I'm not overly bothered if it turns into 'just' a bullion coin, as it's still a nice chunk 🙂

Hopefully the photos show the issue well enough. I obviously haven't taken it out of the case to examine the reeded edges more closely!

[LawrenceChard]

9 hours ago, Stuh said:

Toning on a PF69 UC NGC Graded Coin?

I fully admit I know 'bob-all' about graded coins, but nevertheless have somehow got one in my bullion stack... A ninja panda that's crept in and I need help with him...

I've noticed that the reverse of the coin has what looks like black toning in places, on the very edge, right where the coin meets the plastic holder material. Can anyone who 'knows' graded coins help me with this - is this black toning normal on new-ish graded coins? Was it likely to have had this toning before it went into the case? And probably most importantly for me, does it affect the grading or the value in any way? I'm not overly bothered if it turns into 'just' a bullion coin, as it's still a nice chunk 🙂

Hopefully the photos show the issue well enough. I obviously haven't taken it out of the case to examine the reeded edges more closely!

Silver tones / tarnishes (scientific fact).

As this is an NGC slab, you could try reading their FAQ pages about toning, and their grading criteria.

This might be helpful:

https://www.chards.co.uk/blog/coin-toning/232

😎