2c Black (73). Choice
centering, part imprint at left, original gum, barely hinged,
intense shade and impression, Extremely Fine Gem, with 1996 P.S.E.
certificate (Image) 
2c Black (73). Original
gum, h.r., adherence on back from another Black Jack stamp, Very Fine (Image)
2c Black (73). Block of
twelve, original gum, four stamps at top center Mint N.H., others
lightly hinged, crisp impressionFINE-VERY FINE. A BEAUTIFUL AND RARE ORIGINAL-GUM BLOCK OF TWELVE OF THE 2-CENT BLACK JACK CONTAINING FOUR MINT NEVER-HINGED STAMPS.
With 1999 P.F. certificate. Scott Retail as hinged singles (Image)
2c Black, Z. Grill (85B).
Unused (no gum), clearly-defined grill, deep shade, wide
marginsEXTREMELY FINE. A RARE SUPERB WIDE-MARGINED UNUSED EXAMPLE OF THE 1868 2-CENT Z GRILL.
With 1998 P.F. and P.S.E. certificates (Image)
2c Black, E. Grill (87).
Original gum, lightly hinged, clearly-defined grill, sharp proof-like
impressionVERY FINE AND CHOICE. A FRESH AND WIDE-MARGINED EXAMPLE OF THE 1868 2-CENT E GRILL WITH ORIGINAL GUM.
With 1992 P.S.E. certificate (Image)
2c Black, F. Grill (93).
Original gum, lightly hinged, wide margins, Very Fine and choice, with 1981
P.F. certificate (Image)
2c Black, F. Grill (93).
Block of four, unused (no gum), clear grills, deep shade, choice centering,
Extremely Fine, Scott Retail as four no gum singles
(Image) 
2c Black, Re-Issue (103).
Original gum, almost perfectly centered with exceptionally wide margins,
proof-like impression on bright paperEXTREMELY FINE GEM. A SUPERB ORIGINAL-GUM EXAMPLE OF THE 2-CENT BLACK JACK RE-ISSUE. UNQUESTIONABLY ONE OF THE FINEST EXTANT.
With 1987 P.F. certificate (Image)