KNILM Dutch East Indies version with the double tail. The experimental "X" prefix was required by the CAA (now FAA) for company flight tests in the US before delivery. Photo by Howard Levy.

Photo by my father Algy Spurr. Circa January 1941 - L2673 - Vickers Wellesley - Over Nairobi, with the Jamia Mosque and the McMillan Memorial Library on the right. The avenue is today's Kenyatta Avenue.

The prototype Lancaster BT308 was assembled and had its initial test flights at Ringway. It is seen here with the initial small fins supplemented by a third on the fusealage. After its first flight on 9 January 1941, the familiar larger elliptical twin fins were fitted. From Avro 60 years ago.