8c Pale Olive Green
(414). Mint N.H., rich color on crisp paper, well-balanced margins,
Very Fine and choice, with 204 P.F. certificate
(Image) 
12c Claret Brown (417).
Mint N.H. with plate no. at left, intense shade and impression,
choice centering, Extremely Fine, with 2004 P.F. certificate (Image)
20c Ultramarine (419).
Lightly hinged, pretty shade on bright paper, wide margins, Very Fine and
choice, with 2004 P.F. certificate (Image) 
30c Orange Red (420).
Vibrant color, wide and well-balanced margins, Extremely Fine, with 2001
P.F. certificate (Image) 
50c Violet (422). Lightly
hinged, Very Fine (Image) 
50c Violet, $1.00 Violet
Brown (422-423). Fresh and Fine-Very Fine
(Image) 
1c-30c 1913-15 Issue
(424-439). Complete for these values, some h.r., Fine-Very Fine (Image) 
1c Green, Perf 12 x 10 (423A,
formerly 424a). Vertical pair, Mint N.H., deep rich color, tiny
corner perf crease at top leftFRESH AND FINE. THIS IS THE ONLY RECORDED MINT NEVER-HINGED EXAMPLE OF THIS ISSUE. ONE OF ONLY SEVENTEEN RECORDED UNUSED EXAMPLES, AND ONE OF ONLY TWO PAIRS CONTAINED IN OUR RECORDS.
Our census of Scott 423A, available at our website at: http://siegelauctions.com/enc/census/423A/423A.htm, contains nine unused singles, two vertical pairs and a block of four, for a total of seventeen unused copies. All genuine stamps are off-center, as is the example offered here.
This pair was included in our original census, based on the catalogue description from a 1946 Costales auction of the Colonel Green collection. This item was rediscovered by us when looking through several file cabinets of unused and used stamps in an estate collection.
Census No. 423A-OG-PR-02. Ex Colonel Green. Scott Retail as two hinged singles. (Image)
1c Green, Perf 10 x 12 (423D,
formerly 424b). Deep rich color on bright white paper, neat "Dayton
Ohio" precancelVERY FINE. A CHOICE EXAMPLE OF THE RARE 1914 ONE-CENT PERF 10 x 12 ISSUE.
Our census of Scott 424a contains 36 stamps. All genuine stamps are used, including 30 with the Dayton precancel.
Census No. 423D-CAN-18. With 1984 and 2004 P.F. certificates. (Image)
5c Blue (428). Mint N.H.,
deep rich color, fresh and Extremely Fine, with 2002 P.S.E. certificate (Image)
5c Blue (428). Mint N.H.
block of four, intense shade and impression, line between left pair appears
to be a plate crack, Fine-Very Fine (Image)