5c Brown, F. Grill (95).
Precise centering, deep shade and clear grill impression, couple small
thins and light toning, otherwise Extremely Fine, with 2000 A.P.S.
certificate (Image)
10c Yellow Green, F. Grill
(96). Unused (regummed), precise centering, few small light toned spots
not noted on certificate, otherwise Very Fine, with 1999 A.P.S. certificate
(Image)
10c Yellow Green, F. Grill
(96). Choice centering with extra wide margins at top and bottom,
brilliant color, light strike of blue cancel, Extremely Fine, a
difficult stamp to find with choice centering, with 2001 P.F. certificate
(Image)
12c Black, F. Grill (97).
Crisp impression, choice centering with well-balanced margins, bold cork
cancel, fresh and Extremely Fine, with 1996 P.F. certificate (Image)
12c Black, F. Grill (97).
Well-centered on bright white paper, Very Fine and choice, with 1998 P.S.E.
certificate (Image) 
15c Black, F. Grill (98).
Described by the P.F. as regummed, but in our opinion this stamp has
original gum (see notes below), lightly hinged, almost perfectly centered
with extraordinarily wide margins all around, proof-like impression on
fresh paper, clear and well-defined grill pointsEXTREMELY FINE. A 15-CENT F GRILL WITH MARGIN WIDTH AND CENTERING RARELY ENCOUNTERED IN THIS ISSUE.
The 15c F Grill is very rare and desirable in either Very Fine or Extremely Fine condition. However, only a few existing copies have the margin width of the stamp offered here. With due respect to the P.F. Expert Committee, we strongly disagree with the opinion that this stamp is regummed. Grills were applied after gumming, therefore, original gum always shows the effect of grilling. The gum on this stamp shows such effects and thus cannot be regummed. However, the P.F. has refused to certify the gum as original, even during the reconsideration process when other experts' opinions were offered. Prospective bidders are welcome to compare this stamp to the two 15c F Grill stamps that follow, to anyone it will be apparent that the gum is original, the obstinate P.F. opinion notwithstanding.
With 2001 P.F. certificate (Image)
15c Black, F. Grill (98).
Original gum, lightly hinged, clear grill, sharp proof-like
impressionVERY FINE AND CHOICE. A FRESH ORIGINAL-GUM EXAMPLE OF THE 1868 15-CENT F GRILL.
With 2000 P.F. certificate (Image)
15c Black, F. Grill (98).
Original gum, lightly hinged, sharp grill impression, centered to top, tiny
ink speck on gum does not show thru, Fine, a scarce stamp with original
gum, (Image)
15c Black, F. Grill (98).
Block of four, original gum, lightly hinged, each stamp has clearly-defined
grill, detailed impression, choice centering, some minor perf strengthening
not mentioned on accompanying certificateEXTREMELY FINE. A REMARKABLY CHOICE AND RARE BLOCK OF THE 1868 15-CENT F GRILL.
The demand for choice original-gum examples of the 15c F Grill has resulted in the decimation of virtually every well-centered block in existence. This rare survivor ranks among the finest that ever existed. Today, it could well be the finest extant.
With 1995 P.F. certificate (Image)
15c Black, F. Grill (98).
Perfectly centered with well-balanced margins, sharp impression, bold cork
cancel, Extremely Fine Gem, with 1988 P.F. certificate
(Image)
15c Black, F. Grill (98).
Well-centered, proof-like impression, red Baltimore Foreign Mail
cancel, Extremely Fine, with 1993 P.F. certificate
(Image)