He has the most Harrah's AZ variations that I know of.

Look closely at your $5 chips...
You may see a "big 5" and "little 5"
It is noticeable on the "loop" of the number "5".
Some are "narrow" and some are "Pregnant" (Bernie's word's... but they work.

One the $1's... YES YES YES! I have been babbling about the UV rings for well over a year...
Typically, I am promptly dismissed as being on hallucinogenic drugs.

YES - SOME of the black ringed $1 CI's stay black and some turn purple under UV light. If you really want to get picky... look at the inserts along the sides... I have 4-5 varieties of the $5 chips (coin inlays) and the same with the black CI's and gray ringed CI's.

There are not numbers assigned to these variations, although I think Archie recognizes the different sized $5's in his latest issue of his book.
We have discussed the $1's in the past -
and because I adore Mr Black,
I will say no more than he is "resistant" to appreciating UV variations at this time
Did I do ok with that Archie?