[CR] help identifying this 1960's italian frame

At the time I purchased this frame, I was told it was an Olmo from the 1960's. However, as you can see from the photos, there were no decals, no original paint, no headbadge. As Olmo's typically have a headbadge that attaches with a top and bottom screw rather than a left/right like this, I tend to think that it isn't an Olmo. Any ideas???

Photos - click this link: http://www.mavenmaintenance.com/olmo.html

Thanks -
David
San Francisco, Ca