Item 505246International Meeting on Radio Aids to Marine Navigation, May 1946, Volumes I and II (2 books)
His Majesty's Stationary Office, 1946. Softcover. Two books. 6 x 9.5 inches each. Volume I: Record of the Meeting and Demonstrations, 103 pages. Water staining on front cover. Light pencil writing on back cover. Includes a loose errata page. Volume II: Radio Navigation Radar and Position Fixing Systems for use.....