@Dan DJ@KaileeS
That info. is not correct, just finished a long back and forth email with NGC
The Miller Number will only be added as part of a "Pedigree" (even though it's actually a variety)
In order to do it you'll need to provide proof of a "Pedigree" (Norweb Collection, Ship Wreck etc...) with documentation and submit a decent amount of coins, not just one or two coins at a time
Hello Phil, Thank you for your response! Unfortunately, we are unable to do that for you. I have confirmed this information with the graders. We truly apologize about that.
Best regards,
Rachel N.
Customer Service
Certified Collectibles Group
p. (855) Grade10 | (855) 472-3310 collectiblesgroup.com