No grooves, Nate. Atlantis reordered $1s, $5s and $25s because of their recent (magnificent) expansion. I think I was speculating at one time, when no one was sure what "mint mark visible" meant, that the new issue $5 and $25 might have grooves. Only the $1s do. At this point, I know of 3 variations of the $1 and two variations each of the $5 and $25.

Here's a link to my scan of the two different $25s:

http://www.greatbasin.net/~sweetie/atlantis25s.jpg

Here's a link to my scan of the two different $5s:

http://www.greatbasin.net/~sweetie/atlantis5s.jpg

And below is a scan of the three $1s, with the original grooveless on the left, 2nd issue with grooves on the right, and new issue with BJ visible in the middle. FTR, I have stockpiles of all of these chips, and will sell them for my usual price, or trade.