1966 Kopke Colheita
Brown and tan, with just a hint of red remaining. I didn't note any green around the rim. The nose contains VA and leather, along with possibly some shoe polish. At this point, I'm thinking this must be a Madeira.
Wrong. Very robust in the mouth, with dried apricots and oak being the most prominent flavors. Some very faint vanilla, and some cinnamon. It's much too sweet to be even a Malmsey, so it has to be a Tawny. Given the roundness of the mouth feel and the full, rich, flavors it seems like it must be a blend. My first guess is a 20-yr old, possibly even the Ferreira Duque de Braganca. Some discussion of Colheitas ensues, at which point I note that if it is a Colheita it has to be at least 40 years old, and probably a 1966.
Whee! I got one right. To no one's surprise, this was my WOTN. As I recall, it was also Roy's and Kris's.
What's annoying is that the distinctive Kopke bottle didn't tip me off. Since it was shorter than all of the others, I thought it was a half bottle until I picked it up, and even then didn't really clue in to the Kopke shape. In my defense this was bottle #5, and I am a lightweight.

Edit: fixed annoying (to me) typo