For Sale: Beautiful Colnago Dream Art Decor 52cm Full Dura Ace 7800 Campagnolo FS.

I'd describe that as scuffing from use (riding it a bit).
'Wear' would suggest damage.
It's not damaged.

That's fine, just didn't know if it was the camera or dirt on it. Otherwise it looks really good condition.

As above what are the tt and st measurements as that stem looks quite long also.