This thread may be the best Ron Cooper resource currently on line.

Here is mine.
I bought the frame from the US earlier this year. The vendor believed it to be an 80s frame, but long Campag 1010 dropouts, 120mm dropout spacing, minimal braze-ons, cloverleaf cutout headlug all point to 70s.
I think the barend shifter cable stops and toptube cable guides were added when the frame was repainted sometime around 1987.
More photos here.
The frame serial number is 694.

Over the last few years I have been putting together a Ron Cooper collection on Flickr, taking photos from ebay & Craiglist.
These are a nice illustration of the evolution of Ron Cooper frames through the 70s & 80s, from early 70s with long dropouts & stamped BB shell & crown; late 70s or early 80s with short 1010B dropouts, and later 80s frames with investment cast BB & crown