Oh man....the guns I got rid of in the course of the past year are way too numerous to list. Tried a lot, liked many, didn't care too much for others, much trading going on.
The most noteable one:
The 1911A1, made in 1945, Rock Island Arsenal-stamped Army issue, which I had to sell just before Christmas to cover an emergency plane ticket home (mom was in the hospital with cancer diagnosis...thankfully benign, as it turned out.) This was the last gun I sold outright, and the last business a certain gun shop in town ever did with me. They gave me $300 and re-sold it for $579. I don't mind contributing to the success of a gun store, but getting skinned like that will make me reconsider future purchase decisions.
Of all the guns I gave away, that one is the one I'd love to have back.