A while back I bought a Master Olympic that was missing its tubing decal. I assumed that it's made from Columbus Gilco, so that's the decal I bought, but I later found out that for a short while around the time when this frame was made, the tubing used was actually Tange Ultimate Superlight. Is there any way to determine for sure which it is? I've checked the fork steerer and there is no Columbus logo stamped on it if that helps.
A photo of the bike in question:
