Lot
250 
Ecuador, 1928, 1½s blue, "Provisional" surcharge, with 1928, 20c bistre brown, horizontal pair (273) on registered cover to New York, in combination with Colombia, 1928, 15c carmine, "EU" overprint, horizontal pair + 20c gray "EU" & "R" overprints (CLEU61, CFLEU3), all tied by blue "Guayaquil, 20 Nov 1928" cds's, reverse with Barranquilla and N.Y. transit postmarks; cover fold towards bottom, F.-V.F., an unusual Ecuador - Colombia registered airmail mixed franking.Scott No. C4 Estimate $200 - 300.
Realized: $800