This is a known cardroom. As per The Chip Guide,

906 North Ventura Avenue
Ventura, California
Type: Card Room
Status: Closed
Opened: 1957

However, I only see a lavender $5 chip listed. I also looked in other CA guides and found the same. So I believe this is a not previously known chip. Also, as you can see from the edge scan, it has what looks like metalic paint edge markers.

If anyone has any info on it, it would be appreciated. Value would also help as I will be selling them soon.