Vertical cylinder exhaust pipe for a bevel drive Ducati 860/900 and 900 Super Sport. Both the above part #s are stamped into this particular pipe. I have seen this on a few other bikes I have either owned or worked on through the years.
This is a used header pipe in decent condition. There are scrapes as shown in the photo along the bottom of the pipe. Run it as-is or strip the chrome, polish and re-chrome if you want perfection. The pipe shown here is the actual pipe you will be ordering.