PMC57, i have one of those buttons. Black witches hat with suzuki logo. It was on a PE250 T and i feel it was original even though the sames brochure shows red. There were many options on the 1980 models regarding colour of horns, CDI units abd shock springs. There was probably half a dozen or more kill buttons suzuki had at the time and they would of put on what ever they had at the time. My 250Z had flat red button like frosty has shown and i reckon it was original because there are several differences between it and the aftermarket types you see. I think it was the melted black sheath to trhe wire. i think this was only done on the aftermarket switch or maybe the otherway around, i forgot, but one has it an one doesnt.