help! need colnago expertise

[colnago girl]

I've inherited a Colnago Master Olympic Decor that I want to sell, and I have absolutely no idea where to even begin writing a decent ad for it. I do have some idea as to the value of the bike, but would welcome any appraisals. If anyone out there could identify the approx. year of the bike and provide me with any pertinent details I would need to include in the ad, I would be GRATEFUL (I am truly in the dark when it comes to technical lingo). Please see the attached photos. Thank you!!

[Re-Cycle]

While there may be someone here that knows, you'd get a lot more help in the vintage forum.

[colnago girl]

thank you, i'll try there as well.

[Yue Tao]

You may want to reverse the quick release skewers so that the lever is on the non-drive side of the bike. No biggie, I'm just sayin...

Your bike is a beauty by the way. Just needs a little TLC.