i believe it is seamed tubing, below cromor.
Message: 13 From: Roadgiant@cs.com Date: Thu, 15 Mar 2001 03:59:29 EST To: classicrendezvous@bikelist.org Subject: [CR]Columbus Aelle tubing
Where does the Aelle tubing fit in the Columbus line? Is it straight gauge? Saw a bike called a Gobietta (sp?) which looked great. But it's labeled Aelle.
Scott "somebody stop me before I buy another bike" Smith