Irland Stoltz, Pernambuco, Brazil, 1s, 9d, and 1/2d defines., GAILLIMH double-ring CDs, green AER POST/GAILLIMH-BERLIN cachet of first flight, red LUFTPOSTAMT/BERLIN handstamp, circular red and hexagonal orange handstamp of 9th South American Flight of the Graf Zeppelin, Pernambuco receipt CDs on the reverse of October 27. Adhesive tape at the left edge and on reverse, otherwise fine. Scarce -Davis states only 25 flown.