Joy Ed Hertels web site is a great reference. There are a few typos and some missing chips, but all and all a great site. I refer to it all the time. He list your chip at $50. That might be on the high side. I have seen a few of them. On some other chips like the $1 and $5 "S" molds, I have never seen one that didn't have holes worn in the knees. I'd pay double the $25 he list to get a really nice one with a good gold hot stamp. Most of the smaller denomination Lookout House chips are condition rarities. There are other collectors that can probably tell you a lot more.