There's no way I could ever afford my complete set of Buff proofs without cherrypicking these and buying the rest using profits from other cherrypicked varieties. Here's a few more from my set. My 1913 Var 2 was posted earlier in this thread.
Keep an eye open-there's some beautifully toned Jeff proofs out there, especially 1961 thru 1963. Here's a beauty from 1958-
I was going thru some OGP before I throw them out. I found this a 2 un-circulate ASE in the 2011 25th Anniversary ASE set OGP> I used the white background so I could tell it from my other images of the 2011-W proof.
Not the most attractive image, as it fails to show the blue toning and mirror fields. Also, please know this coin is impaired (mishandled; damaged) and has been known for that fact for over a century and half.