Thanks for starting this thread Jack, really great posts everyone, you all have added some very nice knives to you collections.
I was fortunate to add many nice and unusual knives this year, so it is hard to pick just one but I will give it a shot.
First I picked up an almost unused Case Tested era Barlow, really great bone,
Another grail find for me is a Schrade 2OT, unused condition,
Did not only add old knives this year, had a great time at the GEC Rendezvous and added a bunch, all special but what was even more special was spending time with friends,
This Walden could have been the one, great big 41/4 jumbo jack in great condition,
The unfinished rare Gardner is in the running,over 100 years old,
But the one that has to be the one is the Tryon Barlow that Charlie generously gave me to go along with my shotgun that came from the E.K. Tryon Company, not only a great Barlow but a wonderful reminder of how great the members of this forum are.