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Western Union Technical Review was published from 1947 through 1968.  In
1947 there were two issues, produced from typewritten originals on 8-1/2
x 11 paper.  However the copy in U. of Arizona library in Tucson is printed
in the 7 x 10 size.  From 1948 through 1967 there were four issues per year,
printed in a size of 7 x 10.  In 1968 there were four issues in a size of 8-1/2
x 11.  In 1969, the final year, there were five issues in a size of 8-1/2 x 11.

Some of these images were scanned directly from the magazine, and some from
photocopies of the magazine pages.  Gamma adjustments have been made in some
cases to try to bring out detail that is otherwise lost in the black depths.
Where 7 x 10 images have been enlarged it was done on the photocopier.
Images were scanned at 600 bits per inch and compressed by the image viewer
program.

If somebody can furnish copies of the magazine for those issues where the
scans are from photocopies I will gladly make new scans from the original
magazine, which should improve the quality.

Copyright status of this material is uncertain.  It was once copyrighted
by the Western Union Telegraph Co.  That company has changed its name to
New Valley Corp. and is principally in the real estate business.  New
Valley has not responded to requests for information about the copyright
and permission to reproduce the material.  The Western Union name was sold,
along with the money transfer business, to another company.  That company
has not responded to questions about copyright either.