I've seen a few Colnagos like this one. It looks to me to have been given the Dutch respray treatment. Someone in Holland regularly rebirths old Colnagos with a fresh lick of paint, and then sells them on fleabay. Sometimes they have a simplified Art-Decor paint job, but this one is more basic. This one looks like it hasn't been rebuilt since the respray either. Genuine Colnogo paint jobs don't typically have the brand on the top tube. Instead they have the model if they are hig-end, and are just blank if they are lower end of the Colnago spectrum (which is still high-end compared to many other bikes). All the tubes on this one appear to be round, so it's not a Tecnos or a Master. I'm going to assume that the headset is original, and was replaced back on the bike after the respray. Lovely late C-Record (1992-1994) headset too. On that basis I reckon it's a C94.
Also, it looks like there is yellow paint on the bottom bracket, implying that they didn't remove it prior to painting. Is that right???