Yes, it was the 2019 estimated enhanced reverse proof American silver eagle, that came with a number certificate of authenticity period which NGC and PCGS did slab them separately usually with the grated coin. As with this basketball coin the number on the certificate does not indicate the order of production. The only numbered certificates were the RCM issued set of the 2019 enhanced reverse American silver eagle and enhanced Canadian coin, they only issued10, 000 sets. they were the only numbered certificate sets that were issued numerically according to the production date that I know of. I listed yesterday the basketball colorized 50 cent piece on eBay with a sign numbered certificate number 199 and until today that was the only signed certificate set listed. But now I see a second person has listed the signed numbered certificate on ebay. If anyone knows how many hand sign number certificates there will be produced please let me know as I don't know how rare mine will become thank you Timothy