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 Airmail, 1930, $2.60 Graf Zeppelin (Scott C15), bottom plate number single, o.g., never hinged, impeccably fresh example with the deepest and richest color imaginable, a beautifully centered top quality stamp for the most discerning collector, Extremely Fine. Scott $975. Estimate $1,000 – 1,500. Daniel Kelleher Auctions, Sep 2014, Sale 655, Lot 834  | 
US$650.00 | 
 
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 U.S. Airpost, 1930, $2.60 Graf Zeppelin, #C15, n.h., Very Fine. Scott $975. Estimate $500-600. Harmer-Schau Auction Galleries, Aug 2014, Sale 102, Lot 2163  | 
US$518.00 | 
 
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 U.S. Airpost, 1930, $2.60 Graf Zeppelin, Plate Block of 6, #C15, stamps n.h. and sound, top #20092, “selvage perfs are lightly glue re-inforced and 7mm tear in top margin above the plate number”, Fine to Very Fine, Weiss (2011) cert. Scott $6,000 (as singles). Estimate price $2,500-2,800. Harmer-Schau Auction Galleries, Aug 2014, Sale 102, Lot 2166  | 
US$3,738.00 | 
 
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 U.S. Airpost, 1930, $2.60 Graf Zeppelin, #C15, o.g., Fine to Very Fine. Scott $575. Estimate $275-325. Harmer-Schau Auction Galleries, Aug 2014, Sale 102, Lot 2164  | 
US$345.00 | 
 
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 U.S. Airpost, 1930, $2.60 Graf Zeppelin, #C15, l.h., light gum wrinkle, Fine to Very Fine. Scott $575. Estimate price $250-280. Harmer-Schau Auction Galleries, Aug 2014, Sale 102, Lot 2165  | 
US$403.00 | 
 
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 o U.S. Airpost, 1930, $2.60 Graf Zeppelin, #C15, used, Fine to Very Fine, PSAG (2011) cert. Scott $600. Estimate value $250-300. Harmer-Schau Auction Galleries, Aug 2014, Sale 102, Lot 2168  | 
US$374.00 | 
 
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 $2.60 Graf Zeppelin (C15). Block of four with left plate no. selvage, Mint N.H. except top pair few tiny moisture spots, very handsome margins and centering, top left extraordinary, Extremely Fine, Scott Retail as two Mint N.H. and two hinged stamps without premium for the plate number Robert Siegel Auction Galleries, Jul 2014, Sale 1077, Lot 377  | 
US$1,900.00 | 
 
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 United States – Air Post 1930 Zeppelin, $2.60 blue, used on cacheted Roessler cover to Lakehurst, v.f., attractive Cherrystone Auctions, Jun 2014, Sale 201406, Lot 120  | 
US$525.00 | 
 
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 Scott C15, 1930 $2.60 Graf Zeppelin,P.O. fresh and particularly well centered, NH, 2014 PSE graded XF 90 certificate (SMQ price $1,275) H.R. Harmer, May 2014, Sale 3005, Lot 1402  | 
US$600.00 | 
 
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 Scott C15, 1930 $2.60 Graf Zeppelin,particularly fresh and well centered, NH, 2014 PSE graded XF-Sup 95 certificate (SMQ value $1,750) H.R. Harmer, May 2014, Sale 3005, Lot 1401  | 
US$900.00 | 
 
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 Airmail, 1930, $2.60 Graf Zeppelin (Scott C15), o.g., never hinged, marvelous fresh example with extremely intense color, Fine to Very Fine, 2012 P.F. certificate. Scott $975. Estimate value $600 – 800. Daniel Kelleher Auctions, May 2014, Sale 652, Lot 842  | 
US$650.00 | 
 
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 Airmail, 1930, $2.60 Graf Zeppelin (Scott C15), o.g., lightly hinged, extremely intense color, an attractive stamp, Fine to Very Fine. Scott $575. Estimate price $300 – 400. Daniel Kelleher Auctions, May 2014, Sale 652, Lot 843  | 
US$375.00 | 
 
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 Airmail, 1930, $2.60 Graf Zeppelin (Scott C15), o.g., never hinged, rich blue color with deeply etched impression within nicely balanced margins, a true premium example, Extremely Fine. SMQ Superb 98; $4,250. Estimate $2,000 – 3,000. Daniel Kelleher Auctions, May 2014, Sale 652, Lot 841  | 
US$2,600.00 | 
 
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 Scott #C15, $2.60 Graf Zeppelin, outstanding centering within extraordinarily large margins, rich color and a strong impression, o.g., lightly hinged, an extremely fine gem; a particularly handsome stamp; 2014 PSE certificate (Superb 98; SMQ price $625.00). Spink Shreves Galleries, May 2014, Sale 148, Lot 366  | 
US$650.00 | 
 
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 Scott #C15, $2.60 Graf Zeppelin, striking used single, extraordinarily well centered within large margins, especially fresh color, extremely fine; 2013 PSE certificate (XF-Superb 95; SMQ $1,250.00) Spink Shreves Galleries, May 2014, Sale 148, Lot 367  | 
US$725.00 |