http://www.cyclingnews.com/
"Our visit to Colnago concluded with a swing through the Colnago Museum, where Colnago showed us two new additions to the incredible collection. Right next to Colnago's Gloria racing bicycle from the late 1940s, lovingly restored to original condition, was a rare Master prototype from the early 1980s, with a unique dual downtube design that used later in the Colnago Ti Bi-Tubo used by Tony Rominger to win the Vuelta de Espana a decade later."
Ernesto Colnago's original Gloria bicycle:
http://www.cyclingnews.com/
The Colnago Master Prototype:
http://www.cyclingnews.com/
Innovative dual down tube:
http://www.cyclingnews.com/
Mordecai Silver
NYC