The Bell System Technical Journal 1956 LOT of 2 individual issues, volume XXXV numbers 5, 6; September 1956, November 1956.
AT&T BSTJ 1956, pp. 991-1466 in 2 separate issues; diagrams, references.
AT&T BSTJ 1956, pp. 991-1466 in 2 separate issues; diagrams, references.
AT&T BSTJ, pp. 329 - 485 inclusive; diagrams, photographs, references.
AT&T BSTJ, pp. 645 - 833 inclusive, diagrams, references, some abstracts.
AT&T BSTJ, pp. 1187 - 1429 inclusive, diagrams, references.
AT&T BSTJ, pp 921 - 1247 inclusive, references, diagrams, photographs.
AT&T BSTJ, pp. 1431 - 1680 inclusive, diagrams, references.
AT&T BSTJ, pp. 1355 - 1505 inclusive, diagrams, references.
BSTJ, American Telephone & Telegraph, 1958, pp 581-834 inclusive, references, photographs, diagrams.
AT&T BSTJ 3 individual issues 1957, diagrams, references.
AT&T BSTJ 1965 pp. 373-935 in 3 separate issues; diagrams, references.
AT&T BSTJ four individual issues 1970, diagrams, references.
AT&T BSTJ 1977 individual issues, diagrams, references.
AT&T BSTJ, 1954, volume XXXIII nos. 2, 4, 5, diagrams, references.
AT&T BSTJ 1969, February, March; pp. 321-816 in 2 individual issues; diagrams, references.
AT&T 1978, pp 3097-3323 inclusive, diagrams, references.
AT&T 1978, pp 2769-3096 inclusive, diagrams, references.
AT&T 1978 pp 2575-2767 inclusive, diagrams, references.
AT&T 1978, pp 479-795 inclusive, diagrams, references.
AT&T 1978, pp 1231-1715 inclusive, diagrams, photographs, references.
AT&T BSTJ, pp. 2417 - 3019 inclusive, references, diagrams.
AT&T BSTJ, pp 1 - 206 inclusive, diagrams, references.
AT&T BSTJ 1958, diagrams, references; three individual issues.
AT&T, pp 1609 - 1994 inclusive, references, diagrams, photographs.
AT&T 1978, pp 221-477 inclusive, references, diagrams, photographs.
AT&T 1970, pp 159-320, references, diagrams, photographs.