1902 $4 DC-17FP (Face & Back Proof) "FOUR" PMG Choice Uncirculated-64EPQ & Gem Uncirculated-65EPQ. From The ¨Gem Collection¨. Charlton only indicates Proofs with Boville signature. This rare example shows Courtney signature. Believed to be excessively rare. This note is the DC-17b with "FOUR"S on top bearing the Courtney signature. From The ¨Gem Collection¨.