65c-$2.60 Graf Zeppelin
(C13-C15). 65c with plate no. at bottom, $1.30 lightly hinged, others
Mint N.H., 65c with natural gum skips, beautifully centered and Extremely
Fine set (Image) 
65c-$2.60 Graf Zeppelin
(C13-C15). $2.60 Mint N.H., other two lightly hinged, bright colors,
Very Fine (Image)
65c-$2.60 Graf Zeppelin
(C13-C15). Mint N.H. plate no. blocks of six, 65c and $1.30 with bottom
selvage, $2.60 with top selvage, rich colors on bright papers, usual
natural gum skips and bends, $1.30 and $2.60 each with tiny
inclusionEXTREMELY FINE MINT NEVER-HINGED SET OF GRAF ZEPPELIN PLATE BLOCKS.
A beautiful set (Image)
$2.60 Graf Zeppelin (C15).
Mint N.H., bright color and proof-like impression, small thin from removal
of perf disc inclusion, otherwise Extremely Fine
(Image) 
6c Dark Blue & Carmine,
Vertical Pair, Imperforate Horizontally (C23a). Guide line at center,
barest trace of hinge, rich colors on bright white paper, light vertical
crease, otherwise Extremely Fine, Kessler backstamp
(Image)