1998, "H" Uncle Sam's Hat, Postcard Rate, unissued. O.g., lightly hinged (small gum blemish), fresh and F.-V.F., a very rare stamp not officially issued, with only a small number of examples reported to exist; with 2007 P.S.E. graded certificate (F-VF). Scott No. 3269 var  Estimate $4,000 - 6,000. $0 (Image)