Telegraph Cipher, Pinkertons
National Detective Agency, 1895
Pinkertons National Detective Agency published a telegraph cipher to be
used by members of the American Bankers Association which was one of the
agency's major clients to report crime to them. The above is a photo out
of a published book that Pinkertons National Detective Agency developed
that was mailed to every member of the American Bankers Association. Note
the different ciphers used to indicate a specific crime as well as the
ciphers used for each address. You can learn more about the book sent
out to every member of the American Bankers Association by clicking
here. You can learn more about the telegraph and private investigators
in the 1800's and listen to an actual telegraph you can type out by clicking
Below is a photograph of a
page that gave instructions for members of the American Bankers Association
on what to do immediately after a "burglary, forgery, swindle or
Ralph D. Thomas PI Vintage Collection
THOMAS INVESTIGATIE PUBLICATIONS, INC.
NATIONAL ASSOCIATION OF INVESTIGATIVE SPECIALISTS, INC.
SPY EXCHANGE AND SECURITY CENTER
P O Box 82148, Austin, Texas 78708
Showroom: 9513 Burnet Road, Austin, Texas 78758
Phone 512.719.3595 Fax 512.719.3594
To The Spy And PI Vintage Pages
2006, Thomas Investigative Publications, Inc. All rights reserved.
Thomas Investigative Publications, Trademark, 1981.
National Association Of Investigative Specialists, Inc, Trademark, 1986.
Spy Exchange, Trademark, 1999