A couple interesting notes from the Beckett Pricing/Checklist.

https://www.beckett.com/search/?term=cryptocurrency

It has the Allen and Ginter X Black Mini listed as 1 of 1 card. I know I've seen several listed on ebay not many, but a few listed at the same time. So that can't be accurate. I know collectors are saying its under 100, but it might be less.

It also has a Silver Allen and Ginter X listed as a 1 of 1.