Not all that rare, but t205 Addie Joss has always alluded me for whatever reason. Timing has never been right, cost has always been to much....etc. The stars never aligned.
Well, I recently picked one up and am thrilled to have it. It is low grade, maybe a SGC 20-SGC 30, but it still sits pretty in my collection. Now I just need to find a way to upgrade it.
Next most elusive... t205 Christy Mathewson. Again, not rare at all, just have to find one at the right price at the right time. I bet over the years, I have bid on 150 of these and never won one.