Communication Theory and Secrecy Systems [mimeographed typescript copy #2 - one plate of four in facsimile]
Murray Hill, N. J. Bell Telephone Laboratories, Inc. May 2, 1949. [1]-40 leaves + four plates. 10 7/8 x 8 3/8 inches (plates slightly larger). Mimeographed typescript printed on recto only. Ink stamped "May 2-1949" on upper right corner. Text with four holes punched at spine, double stapled upper left..... More
