1c Blue, Ty. Ib (5A).
Position 6R1E, huge margins on three sides incl. sheet margin at top, just
in at bottom, neat town datestamp, repair in top margin and small thin
spots, Fine appearance, scarce stamp from one of the two best positions of
the type, with 1996 P.F. certificate (Image)
1c Blue, Ty. Ia (6).
Position 92R4, large margins to just touched, bold strike of town
datestamp, light creases, Very Fine appearance, scarce stamp, with 1979
P.F. certificate (Image)
1c Blue, Ty. II (7). Unused
(no gum), large margins to just in incl. part of sheet margin at
bottom, pretty shade, light corner creases affect three corners,
otherwise Fine (Image) 
1c Blue, Ty. III, Position 99R2
(8). Unused (no gum), clear stitch watermark at top, large
margins to just in, rich color on bright paper, thin spot at
centerFINE APPEARANCE. A RARE UNUSED EXAMPLE OF THE IMPERFORATE ONE-CENT TYPE III FROM POSITION 99R2.
Only a handful are known in unused condition. With 1997 P.F. certificate (Image)
1c Blue, Ty. III (8). Large
margins to just in incl. part of adjoining stamps at sides, rich color,
neat pen cancels, diagonal crease at top right, otherwise Fine, with 1991
P.F. certificate (Image)
1c Blue, Ty. IIIA-III
(8A-8). Horizontal pair, Pos. 79-80L4, large margins incl. sheet margin
at right, rich Plate 4 color on bright fresh paper, light circular
datestamp, Ty. IIIA at left with wide break at top and complete outer line
at bottom, Ty. III at right with wide break at top and small break at
bottomEXTREMELY FINE AND REMARKABLY FRESH COMBINATION PAIR OF THE ONE-CENT 1851 IMPERFORATE TYPES IIIA AND III.
With 2002 P.F. certificate (Image)
1c Blue, Ty. IIIa (8A).
Large margins all around incl. part of adjoining stamp at top, brilliant
color from Plate 1E, wide break at top, neat strike of small Boston "Paid"
gridEXTREMELY FINE. A BEAUTIFUL EXAMPLE OF THE IMPERFORATE ONE-CENT TYPE IIIa.
With 2001 P.F. certificate (Image)
1c Blue, Ty. IV (9). Recut
once at top, original gum, h.r., large margins to just touched incl.
sheet margin at bottom, fresh color, Very Fine
(Image) 
1c Blue, Ty. IV (9).
Position 5R1L, large part original gum, large margin sto just in incl.
sheet margin at top, light overall toning, crease in sheet margin at top,
otherwise Fine example of a position that yielded Type Ib in the earlier
state of the plate, with 2000 P.F. certificate
(Image)
1c Blue, Ty. IV (9).
Position 91L1, triple transfer, one inverted, recut once at top,
immense margins all around with trace of adjacent stamp at top and sheet
margins at bottom and left, neat circular datestampEXTREMELY FINE. AN OUTSTANDING EXAMPLE OF THE 1851 ONE-CENT WITH TRIPLE TRANSFER, ONE INVERTED, FROM PLATE 1 LATE.
With 2000 P.S.E.certificate. (Image)