Access restrictions apply.
| Container | Contents | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BOX CL 1 | Classified, 1940-1943 | ||||||||||||
| Documents containing security information removed from the collection. | |||||||||||||
| Arranged and described according to the series and folders from which the items were removed. | |||||||||||||
| BOX CL 1 | Bell Telephone Laboratories, Murray Hill, N.J. | ||||||||||||
| Diagrams and photographs | |||||||||||||
| Miscellany, undated (Container 11) | |||||||||||||
| Miscellany | |||||||||||||
| Analogue for the Vernam System for Continuous Time Series, Case | |||||||||||||
| 20878, 1943, May 10 (Container 11) | |||||||||||||
| Pulse Code Modulation, Case 20878, Dec. 1, 1943 (Container 11) | |||||||||||||
| Washington, J.S.M., cable to War Cabinet Offices, London, | |||||||||||||
| England, 1943, Feb. 20 (Container 11) | |||||||||||||