Lot
1376 
Canal Zone, 1918-19 Ocean to Ocean Aero & Submarine Mail Service, two legal size O.B. covers; 1918 Fourth Liberty Loan Flight and 1919 Victory Loan Submarine Mail Service - both Cristobal to Balboa, each with special cachet date stamp and signed by loan chairman and director of posts C.H. Calhoun, Very Fine. Estimate $200 - 300.
Realized: $160
Lot
1377
Canal Zone, 1918-19 Ocean to Ocean Aero & Submarine Mail Service, two legal size O.B. covers; 1918 Fourth Liberty Loan Flight and 1919 Victory Loan Submarine Mail Service - both Cristobal to Balboa, each with special cachet date stamp and signed by loan chairman and director of posts C.H. Calhoun, Very Fine. Estimate $200 - 300.
Lot
1378
Canal Zone, 1929 Friedrichshafen, Germany (Zeppelin flight) to Cristobal, special "Longest Airmail Route" post card franked with Germany 2m Zeppelin tied by "Friedrichshafen, 22.Apr.29" cds, reverse franked with U.S. 10¢ Lindbergh pair + 1¢ & 2¢ definitives with Sevilla (Spain) transit and "Cristobal, May 13, 1929" machine postmark, Very Fine. Estimate $200 - 300.
Realized: $170
Lot
1379
Canal Zone, 1930 (April 27) Miami to Cristobal Direct Express Service (C.A. Lindbergh pilot), airmail cover franked with U.S. 1930, 65¢ Zeppelin (C13) tied by New York duplex postmark (4.25), endorsed "Via Lindbergh S.A. Flight" with "Cristobal, Apr 27" machine backstamp, Very Fine, a very unusual U.S. Zeppelin issue usage. Estimate $200 - 300.
Realized: $290
Lot
1380 
Canal Zone, Airmail, 1951, 31¢ Globe & Wing, imperf vertically, horizontal pair, o.g. (part on left stamp), faint staining and crease in right stamp, Fine appearance, with only 98 pairs recorded; with 2006 P.F. certificate. Scott No. C25a $1,250.
Realized: $270
Lot
1381 o
Canal Zone, Airmail Official, 1941, 40¢ yellow, type II, block of 4, rich color, F.-V.F., a very scarce multiple. Scott No. CO12 $1,100.
Realized: $220
Lot
1382 /o
Canal Zone, 1907, 5¢ & 10¢ Bliss "Postage Due" Provisionals, type A overprint, former top margin single with o.g., F.-V.F., a very scarce pair of these postage due forerunners; each with 1979 A.P.S. certificate. Scott No. 24 & 26 vars Estimate $300 - 400.
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Realized: $350
Lot
1383
Canal Zone, Postage Dues, 1914, 1¢-10¢ complete, o.g., rich colors, 1¢ with short perf, F.-V.F. Scott No. J1-J3 $1,335.
Realized: $375
Lot
1384
Canal Zone, Postage Due, 1914, 1¢ rose carmine, block of six, in combination with Postage Due, 1914, 2¢ rose carmine, two singles on cover from Ipswich, Jamaica to Cristobal, canceled by quartered cork cancels with matching "T" in circle handstamp, origin and receiving backstamps; cover slightly reduced at sides and top which opens for display, F.-V.F., certainly one of the largest multiple usages of the 1914 1¢ postage due issue on a regular size cover. Scott No. J1+J2 Estimate $200 - 300.
Realized: $525
Lot
1385
Canal Zone, Postage Due, 1915, 1c on 1c olive brown, corner margin imprint single, in combination with Postage Due, 1915, 1c olive brown, right margin single on corner card cover from Balboa to Cristobal, franked with 1913, 1¢ green & black (38) tied by 1916 duplex postmark, dues tied by machine cancel; light cover fold not affecting stamps, Very Fine, a rare corner margin single usage and mixed due issue combination; with 1999 P.S.E. certificate. Scott No. J7+J4 Estimate $300 - 400.
Realized: $270