Campag derailleur identification
 

Oddity, mismash, or something else entirely?

http://desmond.imageshack.us/Himg19/...jpg&res=medium

It looks a bit like a first-gen Super Record with the faceplate drilled out, but with pulleys from an earlier version.

I would say that is exactly what it is. Perhaps once the drillium was done the older pulleys were added to reduce weight further.