Lot
1212 
Canal Zone, 1925 (Aug. 10) Colombia Scadta First Flight Covers, two covers, each bearing Colombia, 1923, 30c Blue, Air Post (C42) used with National 3c, tied by "Postal Aereo, Barranquilla, Aug. 10, 1923" double-circle datestamp to Balboa Heights, Canal Zone, violet "Primer Correo Aereo, Colombia-America Central" boxed cachet, Cristobal and Ancon transit backstamps, interesting SCADTA label sealing cover; slight toning, one with 3c stamp tear, F.-V.F. and scarce pair, few covers were carried on this survey flight using Dornier Wal flying boat. Estimate $200 - 300.
Lot
1213
Canal Zone, 1927 (Aug. 25) Canal Zone Scadta Flight Cover to Barranquilla, Colombia, bearing Canal Zone 5¢ dark blue (86) tied by "Cristobal, Canal Zone, Aug 25, 1927" duplex on cover to Bogota, Colombia, in combination with Colombia 1921, 30c Scadta airmail with "P" overprint (C42) tied by Barranquilla (8.29) cds, Bogota (8.31) arrival backstamp; top edge paper improvement, Very Fine appearance. Estimate $150 - 200.
Lot
1214
Canal Zone, 1928 (Mar. 20) Canal Zone Scadta Flight Cover to Barranquilla, Colombia, bearing Canal Zone 5¢ dark blue (86) tied by "Ancon, C.Z., Mar 20" duplex on legal-size cover to Bucaramnga, Colombia, in combination with Colombia 1921, 30c Scadta airmail with "P" overprint (C42) tied by Barranquilla (4.4) cds, additional Apr. 5th strike and blue Apr. 4th receiving backstamp; slightly rough opening at right, F.-V.F. Estimate $150 - 200.
Lot
1215
Canal Zone, 1928 (Jun. 25) Canal Zone Scadta Flight Cover to Barranquilla, Colombia, bearing Canal Zone 2¢ carmine (84) tied by "Ancon, C.Z., Jun 25, 1928" duplex on cover to Bogota, Colombia, in combination with Colombia 1921, 30c Scadta airmail with "P" overprint (C42) boldly tied by Barranquilla (6.27) cds, blue Apr. 4th receiving cds; Bogota (6.29) arrival backstamp, magenta "Apartado" straightline, Very Fine. Estimate $150 - 200.
Lot
1216
Canal Zone, 1930 (Jan. 20, Aug. 3) Colombia Scadta Flight Covers via Canal Zone to Germany, two covers bearing Colombia 1c//15c franking with each stamp tied by "Servicio de Transportes Aereos, Cali" cds, green "Correo Aereo" labels, both used in combination with Canal Zone 20c Airmail (C5) tied by "Cristobal, C.Z." duplex, Aug. 3rd also bearing ½¢ Canal Zone #70 strip of four tied by Cali cds, Very Fine pair. Estimate $150 - 200.
Realized: $110
Lot
1217
Canal Zone, 1930 (May 24) Guayaquil, Ecuador to New York City via Canal Zone, flight cover bearing Ecuador 10c airmail, 75c Scadta tied by "Guayaquil, 24.V" cds, green "Correo Aéreo" label, Canal Zone 20c airmail tied by "Cristobal, C.Z. May 27, 1930" duplex; top right opening tears, F.-V.F. Estimate $200 - 300.
Lot
1218
Canal Zone, 1930 (Dec. 17) Scadta Combination Flight Cover to Germany, cover bearing Colombia 1c-30c franking on front and reverse, each stamp tied by "Servicio de Transportes Aereos, Cali, 17 XII 1930" cds, "Par Avion" blue label, used in combination with Canal Zone 20¢ Airmail (C5) tied by "Cristobal, C.Z. Dec 23, 1930" duplex and uncanceled ½¢ Canal Zone (70) pair, Very Fine. Estimate $200 - 300.