15c Black (77). Sharp
proof-like impression, choice centering with wide margins, bold strike of
cork cancels, Extremely Fine Gem, with 2000 P.F. certificate (Image)
15c Black (77). Intense
impression, perfectly centered, cork cancel and part of red cancel,
Extremely Fine, with 2000 P.F. certificate
(Image)
15c Black (77). Full top
left corner sheet margin, intense color and detailed impression on bright
white paper, bold New York rosette fancy duplex cancel, fresh and Very
Fine, the 1861 high-values are rarely found with corner sheet margins
intact (Image)
24c Lilac (78). Block of
four, slightly disturbed original gum, choice centering, brilliant color
and sharp proof-like impressionFINE-VERY FINE AND RARE BLOCK OF THE 1862 24-CENT LILAC SHADE.
Original-gum blocks of the 24c 1861 are very scarce in any condition. This block is remarkably fresh. (Image)
24c Grayish Lilac (78a).
Original gum, lightly hinged, intense color and impression, Very Fine, with
2000 P.F. certificate (Image)
24c Grayish Lilac (78a).
Choice centering, bright shade contrasted by light strike of red
circle of wedges cancel, fresh and Extremely Fine, with 2000 P.F.
certificate (Image) 
24c Gray (78b). Large
part original gum, h.r., rich color, diagonal crease, otherwise Fine (Image)