That is a REALLY cool looking Eye-talian bike cycle!

Well worth the wait!

Regarding the brakes, it looks like you have the Altenberger1 single pivots. FWIW, some early 70's Raleighs came with dual pivot Altenberger Synchrons and matching levers were provided at the time. (They were actually pretty good low-cost brakes). I'd venture to say that your brakes are earlier, but still don't seem like they would be original to the bike.