12c Black, Z. Grill
(85E). Perfectly centered, lightly struck cork cancel, deep shade, tiny
corner crease at top left, otherwise Extremely Fine, with 1999 P.F.
certificate (Image)
12c Black, Z. Grill
(85E). Intense shade and impression, bold strike of target cancel,
fresh and Very Fine, with 1987 P.F. certificate
(Image)
12c Black, Z. Grill
(85E). Intense shade, clear grill, target cancel and trace of red
transit, fresh and Fine, with 2004 P.F. certificate
(Image)
1c Blue, E. Grill (86).
Original gum, barest trace of hinge, bright color and proof-like impression
on fresh paper, clear grill pointsVERY FINE AND CHOICE. THE 1868 ONE-CENT E GRILL IS FAR SCARCER THAN ITS F-GRILL COUNTERPART, PARTICULARLY IN ORIGINAL-GUM CONDITION.
Some time ago we observed that the 1c E Grill appeared at auction very infrequently, in any form. After analyzing the early 1868 regular-production grills (Z, D, E and F), we concluded that grilling of the 1c 1861 issue with the E (and Z) Grill must have been short-lived, occurring sometime around February 28, 1868. Later grilling of 1c stamps was probably done with the F Grill. Relatively little of the 1c E Grill supply appears to have reached the philatelic market, as evidenced by the stamp's scarcity.
With 1994 P.F. certificate (Image)
1c Blue, E. Grill (86).
Extra wide margins all around, bright shade, cork grid cancel, Extremely
Fine, a superb used example of the 1868 1c E Grill, with 1986 P.F.
certificate (Image)
1c Blue, E. Grill (86).
Well-balanced margins, rich color on bright paper, segmented cork cancel,
Very Fine and choice, ex Koppersmith, with 1986 P.F. certificate (Image) 
2c Black, E. Grill (87).
Original gum, lightly hinged, clearly-defined grill points, deep shade and
fine impression, perfectly centeredEXTREMELY FINE GEM. A SUPERB EXAMPLE OF THE 1868 2-CENT E GRILL, WHICH IS EXCEEDINGLY SCARCE IN THIS CHOICE ORIGINAL-GUM CONDITION.
Of the grilled stamps that were produced in greater quantity (the low-denomination E and F Grills), the 2c E Grill is a surprisingly difficult stamp to find in superb condition. It is much scarcer in this condition than the 2c F Grill.
With 1986 P.F. certificate (Image)
2c Black, E. Grill (87).
Original gum, h.r., choice centering, deep shade, slight bend and tiny thin
in grill not mentioned on accompanying certificate, otherwise Very Fine,
with 1994 P.F. certificate (Image)
2c Black, E. Grill (87).
Clearly-defined grill, crisp impression, unusually wide perforation setting
with part of adjoining stamp at bottom, neat cork cancel, Extremely Fine,
with 2001 P.F. certificate (Image)
2c Black, E. Grill (87).
Clearly-defined grill, bright shade, light strike of target cancel, Very
Fine, with 1999 A.P.S. certificate (Image)
3c Rose, E. Grill (88). Mint
N.H., brilliant color, clearly-defined grill, fresh and Very Fine, only
a tiny fraction of 3c E Grills exist in Mint N.H. condition and even fewer
in this choice grade, with 2004 P.S.E. certificate, Scott Retail as hinged
(Image)