1c Blue, Ty. I (18).
Original gum, small h.r., unusually wide margins with perfs far from
design, bright color and sharp impression, lightened stain, otherwise Very
Fine (Image)
1c Blue, Ty. I (18).
Well-centered, blue grid cancel, left perfs slightly blunted, otherwise
Very Fine (Image)
1c Blue, Ty. I (18). Neat
strikes of grid and town datestamp, attractive shade, Very Fine (Image)
1c Blue, Ty. Ia (19). Deep
rich color, face-free strike of blue town datestamp, small ms. at top left
from address, couple nibbed perfs at bottom, light toned spot at top left,
Fine appearing example of this scarce type, with 1991 P.F. certificate (Image)
1c Blue, Ty. Ia (19).
Position 95R4, deep rich color, neat town datestamp, light corner crease at
top right, centered to bottom left, Very Good, with 1969 P.F. certificate
(Image)
1c Blue, Ty. Ia (19).
Position 97R4, small neat ms. "X" cancel, deep Plate 4 color, small
diagonal crease, appears Very Good, with 1990 P.F. certificate (Image)
1c Blue, Ty. Ia (19).
Position 98R4, deep rich color, neat cancel, centered to bottom, light
diagonal crease, still almost Fine example of this scarce type, signed
Ashbrook (Image) 
1c Blue, Ty. II (20).
Original gum, choice centering, bright shade, interesting printer's ink
pattern and fingerprint on back, faint crease and pulled perf, otherwise
Extremely Fine (Image)
1c Blue, Ty. II (20). Deep
rich color, clear strike of "New-York Aug. 1" datestamp, fresh and Very
Fine, with 2000 P.F. certificate (Image)
1c Blue, Ty. II (20). Deep
rich Plate 2 color, light strike of town datestamp, Fine, with 2000 P.F.
certificate (Image)
1c Blue, Ty. III (21).
Plate 4, intense color on bright paper, well-centered for this difficult
stamp and showing clear breaks in outer lines at top and bottom, blue town
datestampVERY FINE AND CHOICE EXAMPLE OF THE ONE-CENT PERFORATED TYPE III. A SCARCE STAMP CLEARLY SHOWING THE BREAKS AT BOTH TOP AND BOTTOM (THE DEFINING CHARACTERISTICS OF THE TYPE).
With 2000 P.F. certificate (Image)