6c Red Orange, Perf 10 at Top
(506a). Radiant color, neat "San Francisco California"
precancelVERY FINE AND CHOICE. ONE OF THE FINEST OF THE TWELVE USED COPIES THAT HAVE BEEN CERTIFIED BY THE PHILATELIC FOUNDATION.
Our updated census of Scott 506a contains twelve used copies. Of these, eight have faults ranging from pulled perfs to creases. This is one of the finest copies contained in our records.
With 2004 P.S.E. and 2005 P.F. certificates. (Image)
8c Olive Bister, Perf 10 at
Top or Bottom (508c). Pretty pastel color, "Dayton Ohio" precancel, top
left corner faultyA VERY RARE PERFORATION VARIETY. OUR RECORDS CONTAIN ONLY FOURTEEN EXAMPLES.
Only three other examples in our records have a Dayton precancel. (Image)
11c Light Green, Perf 10 at
Bottom (511a). Deep rich color, bold strike of oval cancelFRESH AND FINE. A SCARCE SOUND USED EXAMPLE OF THE 11-CENT FRANKLIN PERFORATED 10 AT BOTTOM.
With 1997 A.P.S. certificate (Image)
11c Light Green, Perf 10 at
Bottom (511a). Bright color on crisp paper, neat "Minneapolis, Minn."
precancel, natural paper wrinkle at left, small thin spot at top, Very Fine
appearance (Image)
11c Light Green, Perf 10 at
Bottom (511a). Bright color, neat "Minneapolis, Minn." precancel, small
corner crease at top left and pulled perf at top right, otherwise Fine
example of this perforation variety (Image)
20c Light Ultramarine, Perf
10 at Bottom (515d). Rich color and detailed impression, bold "Ithaca
N.Y." precancel, single pulled perf at topEXTREMELY FINE CENTERING. AN EXCEEDINGLY RARE EXAMPLE OF THE 20-CENT PERF 10 AT TOP OR BOTTOM. THIS IS ONE OF THE RAREST OF ALL PERF 10 ON ONE SIDE VARIETIES.
We have only sold two other examples since keeping computerized records. The first was in our 1999 Rarities sale, which realized $6,750 hammer. The last example we have offered realized $10,500 hammer in our 2001 auction of the Twigg-Smith Collection (Sale 835). Despite 12 years of searching, Zoellner was never able to find a copy of this rarity (Image)
20c Light Ultramarine
(515). Mint N.H., brilliant color, huge margins, Extremely Fine Gem, a
beautiful stamp, with 2005 P.S.E. certificate (XF-Superb 95) (Image) 
$1.00 Violet Brown (518).
Mint N.H., deep rich color, Jumbo margins all around, full offset of
another Scott No. 518 on reverse, Extremely Fine Gem, with 1990 P.F. and
2005 P.S.E. certificates (XF-Superb 95)
(Image)