New York: Bell Telephone Laboratories, Inc. June 1950. Later printing. 1-9, [3-blank] pages. 21.3 x 27.5 cm (8 3/8 x 10 7/8 inches). Stapled wrappers, printed in grey, light blue, and black. 5 holes punched at the spine, as issued. The first separate edition. A bright clean copy. Very Good. Wraps. 
This is the first Bell Telephone edition, published in the Bell Telephone System Technical Publications Monograph series, #1732. Previously published in Proceedings of the Institute of Radio Engineers, Vol 38, pp 417-425, April 1950 (an IRE offprint does exist)
"The central results of the Wiener-Kolmogoroff smoothing and prediction theory for stationary time series are developed by a new method. The approach is motivated by physical considerations based on electric circuit theory and does not involve integral equations or the autocorrelation function...." (from the summary)
Provenance: From the files of Claude E. Shannon (unmarked).
Literature: Sloane and Wyner, "Claude Elwood Shannon Collected Papers" #51. Not in "Origins of Cyberspace."
COLLECTORS NOTE: The Bell System Monograph series is not an offprint series although it is often incorrectly referred to in this manner. It was rather a publication of Bell Telephone Laboratories used to widely distribute (primarily to libraries and large corporations) research articles written by Bell System employees in a variety of widely dispersed publications (including but certainly not limited to the Bell System Technical Journal). The series, therefore, represents a much broader selection of Bell System research than the Bell System Technical Journal did. Collectors prize this series as they are often (but not always) the first separate appearance of a paper and hence are the closest one can get to the elusive and ever sought-after offprint.