4c Parcel Post (Q4). Lightly hinged, deep rich color, mathematically perfect centering with huge Jumbo margins, Extremely Fine Gem, a superb stamp, with 2016 P.S.E. certificate (OGph, Gem 100 Jumbo; unpriced in SMQ above the grade of 98J), this is the only Scott Q4 to grade 100 Jumbo in the P.S.E. Population Report, there is not even another stamp that grades 100 in any condition (used or unused)

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