I think its the real deal..... It has the correct patina, correct parts and the correct location. And I'd buy it in a heart beart for $475. No brainer right there.

Cupless BB like the early Kleins
Early SR RD
SL pedals
SR seat post
SR brakes
Gold anodized tubulars with probably Record hubs
SR headset
Cinelli bars and stem
And....alloy crank bolts <<<< only die hard aficionados spec a bike with them

Its all of 66cm depending on how its measured. C2T without a doubt its 66.