I sent the seller a message to get more info:
What casinos do you have? Just a quick estimate per casino would help
a lot. Are they all marked .999 fine silver? What condition are the strikes
in? All clean or are they tarnished? The ones "without the brass", are they
$7 strikes or centers from $10 strikes? Are they marked .999 fine silver on
the silver?

He answered back:
Hello, thanks for your interest, it is appreciated. I have gone through my
collection to answer your questions. I have a total of 74 different casino
tokens. Some casinos have multiple tokens but some have the same name but
different scenes. All but seven are marked .999 fine silver. 101 are marked
on the silver round, the rest are marked on the brass ring. Almost all are
shinny, just a couple are not. The 10 without the brass are the centers of
these. I hope I have answered your questions but if not, just let me know
and I will do my best.

Personally, I can't buy anything right now, so I wanted to be sure others who collect are seeing this offering.
Happy Strikin'
Peggy