Not sure, haven't stripped it yet, the early polishing was done with bike intact as I wanted to ride it...
Will have a look and get back, as I'm curious too!
I have a funny feeling it won't be, as I think it may have been built up from a frame. The guy I bought it off was the second owner and he said he got it from a pro roadie who was given this by the shop who sponsored him as a knockabout runaround...
Any chance I could send you the dodgy shifter to look at?