Mexico, Airmail, 1939, 20c Blue & Red, Sarabia Overprint, in combination with 20c definitive + 20c airmail on flight cover to New York City, tied by "Mexico, 23.May.39" First Day of Issue cds's, flight cachet and appropriate backstamps; 20c brown carmine with corner defect, otherwise Very Fine. Scott No. C93A  Estimate $200 - 300. $0 (Image)