I've only ever seen red ones. Nice find. Couple years ago there was a dusty, dirty red one hanging in a local shop. He was asking $175. Not being up to speed on Centurion, and in the middle of a Raleigh project, I mentioned it to a bike club friend, and he grabbed it the next day. I did some research, and discovered what cool bikes these are. My friend is an older gentleman (I'm 70) and is having health problems, and has kind of stopped riding. I hate to pick his bones, but I still wonder about the one that got away. Have fun with yours!
One that got away, sorry for the lousy picture.