5c Rose, Error (505).
Barely hinged, bright color, choice centering, Extremely Fine, with 2003
P.F. certificate (Image)
13c Apple Green (513).
Mint N.H. with plate no. at top, bright color, Jumbo margins, Extremely
Fine Gem, with 2003 P.S.E. certificate
(Image) 
13c Apple Green (513).
Mint N.H., perfectly centered, Extremely Fine, with 2003 P.S.E. certificate
(Image) 
15c Gray (514). Mint N.H.,
rich color, wide margins, Extremely Fine, with 1992 P.F. certificate (Image)
30c Orange Red (516). Mint
N.H. top plate no. block of six, vibrant color, fresh and Very Fine, with
2003 P.F. certificate (Image) 
50c Red Violet (517). Mint
N.H., pretty pastel color, well-balanced margins, Extremely Fine, with 2002
P.F. certificate (Image) 
50c Red Violet (517).
Accompanying certificate states previously hinged which we think is based
on one tiny spot visible only by cross-lighting the stamp, brilliant color,
Jumbo margins, Extremely Fine Gem, with 2002 P.F. certificate, Scott Retail
as hinged (Image) 
$1.00 Violet Brown (518).
Mint N.H., crisp impression, almost perfectly centered, Extremely Fine,
with 2003 P.S.E. certificate (Image) 
$1.00 Violet Brown (518).
Mint N.H., pretty shade, wide margins, Extremely Fine
(Image) 
2c Carmine (519). Mint
N.H., choice centering with well-proportioned margins, rich color and
proof-like impressionEXTREMELY FINE. A BEAUTIFUL MINT NEVER-HINGED EXAMPLE OF SCOTT 519.
This stamp was created in 1917 when a small excess supply of the imperforate Scott 344 was returned by the post office in New York City to the Bureau. Rather than credit the New York post office for the returned postage, the Bureau perforated the sheets and returned them to the post office in New York City for public sale.
With 1987 (copy) and 2003 P.F. certificates (Image)