Canal Zone, Airmail, 1931, $1 Gaillard Cut, in combination with 1931, 40¢ Gaillard Cut, two singles on legal size YMCA corner card cover to New York City, tied by wavy line cancels and "Cristobal, C.Z., Jul 25, 1936" duplex postmark; some cover edge wrinkling, Very Fine, a very scarce high value franking. Scott No. C14+C13  Estimate $200 - 300. $0 (Image)