Report on Japanese Research on Radio Wave Propagation. Vol. II: Summary of Ionospheric Observations, June 1934 to Aug. 1945
Tokyo: U.S. Army Forces, Pacific, 1946. presumed First Edition, First printing thus. Hardcover. Approx. 450 pages. Tables. Appendix. Front board weak. Boards scuffed. Ex-library with library stamp inside front board and on fore-edge. :Library pocket inside rear board. Embossed stamp on title page. More