1c Blue, Type Ia (6). Position 100R4, original gum which is described on one certificate as "part" and on the other as "disturbed" -- it covers most of the back and is not messy, large margins showing part of adjoining stamp at left and complete plumes at bottom which define the type, deep rich Plate 4 color and impression, exceptional freshness

EXTREMELY FINE AND EXCEEDINGLY RARE ORIGINAL-GUM EXAMPLE OF THE ONE-CENT TYPE Ia IMPERFORATE -- ONE OF THE MOST DIFFICULT CLASSIC STAMPS TO OBTAIN IN SOUND, UNUSED CONDITION.

Stamps printed from Plate 4 were issued in April, May and briefly in June 1857 before perforations were introduced. The relatively small number of imperforate Plate 4 stamps issued during this period explains the rarity and desirability of any of the imperforate stamp types produced from this plate (Ia, Ic, II, III and IIIa). The rare Type Ia, showing the full design at bottom, was furnished only by 18 of the 200 subjects on Plate 4 (the remaining two bottom-row positions were sub-type Ic).

Ex "Concord" (Dr. Charles E. Test). 1991 P.F. certificate no longer accompanies (mentioned a "faint brown spot on gum"). With 2008 P.F. certificate as "part o.g." With 2016 P.S.E. certificate (DOG, VF-XF 85; SMQ $75,000.00). This is the only unused Scott No. 6 listed in the P.S.E. Population Report

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