Just had ANACS grade a large motto 1864
Two Cent Piece variety. It came back an MS 63 with a KF-L9 RPD variety designation. I'm not familiar with "KF" designations and I'm looking for reference material and/or photos of coins with this designation to compare with. I have all of the cherrypicker guides and the coin does not seem to match any of those listed. Also, any idea of rarity and value?