Originally Posted by
clubman
Here's a ridged version from what appears to be the same Athena as in the pic. PM if interested

Thanks for the offer, clubman but I just combed thru my small parts and found a ridged barrel (probably NOT original Campy) that fits so am calling off the search until a genuine Campy barrel with that "thumbscrew" end shows up (seems to be a 5mm shaft that is required). Thanks again.