Irish acceptance for first flight from London to Tiberius by Imperial Airways: 1931 (Oct. 15) addressed from Dublin to Tiberias, Palestine, franked 4 1/2d., carried first flight from London via Alexandria and Haifa, backstamped Haifa Oct. 20 and Oct. 21 arrival backstamp. See "British External Airmails until 1934" by Alexander Newall p51