For many years the diamond mold Skyline chips were listed as Henderson until they were traced to a Montana card room.
The $1 has always been a pretty common chip, the $5 a bit scarcer.
The $25, to my knowledge, has never been seen before these 2.
So, I have TWO sets for sale for $25 shipped per set. I am effectively giving away the $1 and $5 as they are not perfect anyway. I would have needed $25 for the $25 alone.

Half the proceeds will go to my Movember fundraising, so email me for payment details if you are interested in these.
http://www.thechipboard.com/index.cgi/page/1/md/read/id/1225922/sbj/ex-shameless-fundraising/
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