My girlfriend owns a phillips 10 speed. It is gold or brass color...a real beauty. I have actually tried to find out more about the 10 speed through this forum, but have never received a response. I know that Phillips is famous for 3 speeds mostly and those are not really valuable. But, I have no idea how valuable or rare the 10 speeds are. But I will say that it is a superb bike and works wonderfully. Hopefully this second thread will bring some new info.