Thanks for your help and support.

Here are three more images: The serial number on the bottom bracket beneath the cable guide,(you can see the original color), a Pat. Pend on the right seat stay above the brake bridge and the head-tube emblem. The Pat. Pend and Cannondale emblem are on top of a very thick, hard finish.

The finish is not chipped, just discolored. I may just leave the finish the way it is. It definitely won't rust.

I was going to install an 8 speed Veloce group that is in my Campy parts stash but this frame may deserve something Campy that is a little more upscale.