Jerry;
I have that chip in my Shuffle Master related collection as Ricochet is one of the games they marketed at one time.

A purple version also exists, I have a scan, but not the chip. It is on my want list.

I know of Ricochet chips from about 10 casinos so far. But Vicksburg is the only one to
date that is reported with a HOP chip.
Jim Kruse posted on this BBS back in March a post explaining the HOP bet.
See:
http://www.thechipboard.com/archives/archives.pl/bid/320/page/1/md/read/id/945644/sbj/isle-of-capri-ricochet-hop-chip/
Jim Noll R3123