1c Green, 2c Carmine, Ty. I,
Kansas City Roulettes (408 var, 409 var). Plate no. blocks of four of
each, hinged on notarized affidavit describing the circumstances of their
purchase, fresh and Very Fine, a rare set of plate blocks of four of this
officially sanctioned private perforation. In December 1914, the Kansas
City post office had an oversupply of imperforate stamps, originally
intended for vending machines. The supply of stamps was rouletted with
women's dressmaking tracing wheels, and official approval for their release
was given by Washington. (Image) 
1c-2c 1912 Coils
(410-413). Pairs, No. 412 guide line pair, Nos. 410-412 Mint N.H., 413
barely hinged, all are fresh and Very Fine, No. 412 with 1993 P.F.
certificate (Image)
20c Ultramarine (419).
Mint N.H., rich color, perfectly centered, Extremely Fine Gem, a superb
stamp (Image) 
30c Orange Red (420). Mint
N.H., intense color on bright paper, beautifully centered, Extremely Fine
Gem, with copy of 1988 P.F. certificate for block of four, this being the
bottom right stamp (Image) 
50c Violet (421). H.r.,
clear offset which is a defining characteristic of this stamp,
well-centered and bright color, Extremely Fine and choice, a difficult
stamp to find this well-centered, with 1989 P.F. certificate (Image) 
50c Violet (422). Lightly
hinged, bright color, well-centered, Extremely Fine Gem, a difficult stamp
to find this well-centered (Image) 
$1.00 Violet Brown (423).
Deep rich color on bright paper, well-centered with wide margins all
around, Extremely Fine Gem, a superb stamp, with 1996 P.F. certificate (Image) 
1c-12c 1913-15 Issue
(424-435). Mint N.H. except for the 8c lightly hinged, fresh and
Fine-Extremely Fine (Image)
1c Green, Perf 12 x 10
(424a). Deep rich color, bold "Chicago Illinois" precancel applied
inverted, well-centered for this stamp, slight crease at
leftEXTREMELY FINE APPEARANCE. APPROXIMATELY 20 EXAMPLES ARE KNOWN OF THIS COMPOUND-PERF VARIETY.
With 1981 and 1999 P.F. certificates (Image)