"Yes, there is/was a butted version called Aelle "R" and it's usually labeled with a big red "R" on the decal so there's no mistake. I have seen very few frames made from it, compared to regular Aelle frames."
Interesting...does anyone know when butted Aelle may have been produced?
Columbus specs from 1989 indicate a plain guage of 0.8
See:
http://www.equusbicycle.com/
Jeff Holt
West Deptford, NJ
USA