Bell System Technical Journal, Tables of Contents and Cumulative Index, volumes XXI XXX, 1942 - 1951.
American Telephone & Telegraph Co, NY, n.d., ca. 1952; 32 pages.
American Telephone & Telegraph Co, NY, n.d., ca. 1952; 32 pages.
IRE 1949, pp 1106 - 1232 inclusive, plus sep. numbered adverts at front & rear. Whole issue in original wraps, as issued.
IRE 1949, pp 338 - 464 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issued.
IRE 1949, pp 466 - 592 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issue.
IRE 1949, pp 978 - 1104 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issu.
IRE 1949, pp 1362 -1496 inclusive, plus sep. numbered adverts. at front and rear, and cumulative 1949 Index at rear.
IRE 1949, pp 226 - 336 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps as issued.
AT&T 1965, pp 207-372 inclusive, diagrams and photographs, references.