I'm with Brian on this one.
The cranks suggest mid-60's. The wheels from 1963 to the mid 80's. The handlebars and stem are from the late 70's.
The few early 60's italian track bikes I've seen didn't use Campagnolo dropouts. Other sources were used. The fork crown was quite popular from the mid 60's to the early 70's.
If the frame is from the late 60's forward, colnago was starting to use scalloped seat tube caps and the italian style lugs, not Nervex.
The petina on the decals suggest that the bike is well kept from the late 60's or early 70's.
I acquired a "Cinelli" Track bike from this vendor. It has so many features that suggests it is a Cinelli but it has a few other features that suggest otherwise. We hear so little about the bike culture in Germany. It is difficult to verify certain claims of provenance. Having said that, the seller is knowledgeable, tends to describe the item at face value, and is a reliable (good communication and reliable in the packing and shipping).
Caveat emptor bidders.
Todd Teachout
Hercules, CA