[Map on 2 Sheets] Geographical Section General Staff (GSGS) No. 3939. Air Survey of Eastern Approach to Jordan Valley North Sheet and South Sheet (Trans-Jordan 1:50,000)

One map complete in 2 sheets. Very good, neatly folded with dusting to the versos and small closed fold and intersection tears. Each sheet measures 104x77cm, printed in 3 colours with brown for contours, blue for water, black for transport links, with titles and labels in English and Arabic. Surveyed at the War Office 1931 from air photos by No14(B) Squadron RAF Ground Control under the direction of Major R.L. Brown, Royal Engineers. Drawn at the War Office 1932 and printed 1933 (1400/40). Heliographed at the OS 1933. Focusing on the Jordan River and its major tributaries, it may have been drawn to show the economic and strategic importance of Trans-Jordan's water resources to Mandatory Palestine's plans for agricultural development, power generation, and related Zionist settlement. The combined area is bounded to the north by the Jordan River from its outflow at Lake Tiberias (NW) inland to Ain et Turab (NE), and to the south by the Zarqa River (Nahr ez Zerka) inland as far as Jerash. Features include roads and tracks distinguishing those fit for Mechanical Transport, actual or proposed railways, trig stations, swamps, springs, telegraph, telephone, and police posts. The upper part of the Valley shows the development of Moshavot and Kibbutzim including Deganiye (Degania Alef), Umm Juniye ("Jewish"), Umm Junieh ("Persian"), Kinnereth ("Co-op"), Menahamiya, etc. The Rutenberg Power Station labelled close to the confluence of the Yarmouk River was nearing completion in the year of the RAF survey, and it began supplying Palestine in 1932. This major project was part of a significant concession Mandatory Palestine granted to Pinhas Rutenberg via his Palestine Electric Company. It involved several new hydro-electric power projects with others at Tel Aviv, Haifa, and Tiberias, which eventually supplied all of Palestine. Close by is a Police Station, and the Jezreel Valley Railway running south from Samakh as part of the Haifa to Dera'a branch of the Hejaz Railway. Rare with Worldcat and Library Hub locating 7 copies between them (Oxford, Cambridge, BL, NERC, NLS, LoC, National Library of Australia). …