Lot 292Airmail, 1918, 16¢ green, nat. s.e., tied by purple "Air Mail Service 'Washington' Wash. N.Y. Phila., Jul 13, 1918" first-flight duplex on cover serviced by Eugene Klein, typed "Airplane Mail" endorsement, "Fee Claimed by Office of First Address" two-line handstamp, Philadelphia (7.15) arrival backstamp, Very Fine earliest date of use; with 2015 P.F. certificate.
Scott No. C2 Estimate $300 - 400.
Scott has removed the listing of July 11 for a C2 First Day after being questioned by the catalogue editors in a footnote and generally disputed by specialists, this July 13 use is therefore the likely earliest recorded.
Lot 293Airmail, 1918, 24¢ carmine rose & blue, tied by sharp purple "Air Mail Service Wash., N.Y., Phila., Washington, May 15, 1918, First Trip" duplex on first flight cover to New York City, May 16th arrival backstamp; reduced slightly at left, Very Fine. Scott No. C3.
AAMC No. 101h $750.
Lot 294Airmail, 1930, Graf Zeppelin complete, group comprising 65¢ #C13 on post card, $1.30 #C14 on post card and $2.60 #C15 on cover, a Very Fine trio.
Scott No. C13-C15 $1,155.
Lot 295Airmail, 1930, 65¢ Graf Zeppelin, tied by "Lakehurst N.J., Jun 1, 1930" duplex on A.C. Roessler illustrated Zeppelin post card to Germany, appropriate purple diamond and red circular cachet handstamps, Very Fine.
Scott No. C13 Estimate $150 - 200.
Lot 296Airmail, 1930, $1.30 Graf Zeppelin, well centered, tied by "Varick St. Sta. N.Y., May 7, 1930" machine cancel on Zeppelin Mail Roessler cachet cover, appropriate purple diamond and red circular cachet handstamps, Very Fine.
Scott No. C14 Estimate $200 - 300.
Lot 297Airmail, 1930, $2.60 Graf Zeppelin, well centered, couple toned perfs, tied by "New York, N.Y., Varick St. Sta., May 7, 1930" duplex to Germantown Pa., purple diamond and German red circular cachets, green Lakehurst (5.31) Zeppelin machine backstamp; light cover wrinkle, Very Fine.
Scott No. C15 Estimate $200 - 300.
Lot 298Airmail, 1932, 8¢ Winged Globe, vertical bisect, tied by bold "Sabetha, Kans. Feb 11, 1935" duplex as postage due on business reply envelope canceled by "Miamisburg, Ohio, Feb 9, 1935" duplex to the Pyrogen Laboratory at Sabetha, Kansas; reduced slightly at right, Very Fine; with 2007 P.F. certificate.
Scott No. C17 var. Estimate $150 - 200.
Lot 299Special Delivery, 1908, 10¢ green, on 2¢ red legal size entire (U414) to Otto, N.Y., in combination with 1¢ Trans-Miss + 2¢ Pan Am + 1¢ Louisiana + 2¢ Lincoln imperf pair + 2¢ Seward imperf (285, 295, 323, 368, 371) all paying the Registered Special Delivery rate, all tied by light oval handstamp with red "Registered, Madison Square Sta., New York, N.Y., Jul 29, 1909" cds's on front and reverse, receiving backstamp, Amsterdam Stamp Expo label and reverse with Durham tobacco label, Very Fine and attractive.
Scott No. E7 Estimate $150 - 200.
Lot 300Offices in China, 1919, 16¢ on 8¢ olive green, with Offices in China, 1919, 12¢ on 6¢ brown + 14¢ on 7¢ black (K6-K7), all with s.e.'s, on locally addressed cover tied by "U.S. Pos. Service, Shanghai, China, Oct 25, 1922" duplex postmarks; cover folds, Fine.
Scott No. K8a Estimate $150 - 200.