In looking at the Columbus page on the CR site I'm having trouble putting dates to the decals. See the three decals in the top row of the link below. My rusty Cinelli still had legible decals and the tubing decal was the decal shown as the "very early foil type" but the bike is a '69 or '70. I have also seen this sticker on a '73 Colnago although it may have been a respray. The decal on the far right is the one that came on my '84 Basso. Those dates set the bounds for my knowledge. The question is when did the decal shown in the middle appear?
http://www.classicrendezvous.com/
Norm Lafleur
Ashfield, Ma.