My research has finally uncovered the source of these chips: a club in Redmond, OREGON in the 1960s. There is also a red $5 and a blue $25 in the series. I am currently putting the finishing touches on my new Oregon chip guide. Oregon has been a very difficult state to research, as there was no state-wide governing body for all the small clubs and bars that have had gambling over the decades. I ended up with a much larger list of Oregon chips and clubs than I expected when I first sat down to write this guide. I will finish it sometime this summer; stay tuned!
Steve "Mr. Pacific Northwest" R-306