Secret Advantage Spy Monocular, 1950's, 1960's
Here the the world's smallest surveillance scope, the tiny Monocular. Really small and compact, you'll be in a position to hide it anywhere. It has a powerful 2.5 amplification and fine focus with sharp image. The result is simply amazing! The unit comes with a tiny case the size of an empty 35mm film container. You'll find high surveillance performance with this one! Very easy to palm and hide. Just place the ring on your finger and within seconds, you are ready for a very quick surveillance peek only you know about. By utilizing the finger ring, you can look quickly and not have to use a closed fist to hide it. So good it is used by governmental intelligence agencies. You can still fnd a small amount of hese around today but they are rare.

From The 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
Email: RThomas007@aol.com

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Copyright: 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