1c Ultramarine (145).
Original gum, radiant color on bright paper, choice centering with
well-balanced margins, fresh and Extremely Fine, with copy of 1989 P.F.
certificate for block of four and with 2000 P.F. certificate as single (Image) 
6c Carmine (148). Original
gum, deep rich color on bright paper, almost perfectly centered with wide
and balanced marginsEXTREMELY FINE. A BEAUTIFUL AND FRESH ORIGINAL-GUM EXAMPLE OF THE 1870 6-CENT NATIONAL BANK NOTE COMPANY UNGRILLED ISSUE.
With 1997 and 2003 P.F. certificates. (Image)
6c Carmine (148). Original
gum with natural gum skip at top, deep rich color and proof-like
impression, well-balanced margins for this difficult issueVERY FINE AND CHOICE ORIGINAL-GUM EXAMPLE OF 1870 6-CENT NATIONAL BANK NOTE UNGRILLED ISSUE.
With 1989 P.F. certificate (Image)
7c Vermilion (149).
Original gum, radiant color, well-proportioned marginsEXTREMELY FINE ORIGINAL-GUM EXAMPLE OF THE 1870 7-CENT NATIONAL BANK NOTE COMPANY UNGRILLED ISSUE. A STAMP OF REMARKABLE FRESHNESS.
This is a difficult stamp to find in such fresh and centered condition. (Image)
10c Brown (150). Original
gum, lightly hinged, bright colorEXTREMELY FINE. A VERY SCARCE PERFECTLY-CENTERED EXAMPLE OF THE 1870 10-CENT NATIONAL BANK NOTE COMPANY UNGRILLED ISSUE WITH ORIGINAL GUM.
With 1997 P.F. certificate (Image)
12c Dull Violet (151).
Original gum, lightly hinged, deep rich color, wide marginsEXTREMELY FINE. A BEAUTIFUL AND FRESH ORIGINAL-GUM EXAMPLE OF THE 12-CENT 1870 NATIONAL BANK NOTE COMPANY UNGRILLED ISSUE.
With 1982, 1989 and 2004 P.F. certificates. (Image)
12c Dull Violet (151).
Original gum, lightly hinged, deep rich color on bright paper, wide
marginsVERY FINE AND CHOICE. THE 1870 12-CENT NATIONAL IS CONSIDERABLY SCARCER IN THIS CONDITION THAN ITS 1873 CONTINENTAL COUNTERPART.
With 1992 P.F. certificate (Image)
15c Bright Orange (152).
Original gum, brilliant color, well-centeredEXTREMELY FINE. THE 1870 15-CENT NATIONAL IS ONE OF THE RAREST OF BANK NOTE REGULAR ISSUES IN THIS CHOICE ORIGINAL-GUM CONDITION.
Ex Argentum. With 1999 P.F. certificate (Image)
15c Bright Orange (152).
Original gum, lightly hinged, vibrant color as fresh as the day it was
printedVERY FINE AND CHOICE ORIGINAL-GUM EXAMPLE OF THE 1870 15-CENT UNGRILLED NATIONAL BANK NOTE COMPANY ISSUE.
With 2004 P.F. certificate (Image)
15c Bright Orange (152).
Original gum, remarkably radiant color, choice centering with
well-proportioned marginsVERY FINE AND CHOICE. A BEAUTIFUL ORIGINAL-GUM EXAMPLE OF THE 15-CENT NATIONAL BANK NOTE COMPANY UNGRILLED ISSUE.
This stamp is most remarkable for its color, which is as bright and fresh as the day it was printed.
With 1975 and 1999 P.F. certificate. (Image)
15c Bright Orange (152).
Original gum, with bottom sheet selvage and part imprint, fresh,
incredibly deep rich color, choice margins and attractive centering,
trivial gum disturbance specks of little consequence, still Very Fine,
scarce in this condition (Image)