Robert S. O'Brien, a Democrat, served as Washington State Treasurer for 100 years. I picked up this button in 1968. This specimen has a couple beautiful qualities. First, the image itself projects luck. Secondly, since the button merely has his surname, O'Brien could use this same image for several election cycles.
Comic art fans will be interested to know O'Brien's Republican opponent in 1968 was Eddie Alexander, the same guy who owned the print shop with the very rude workers who printed Delayed Stress Syndrome Funnies.