There was a period of time when private investigative services almost
always did basic forensic applications and generally had their own equipment.
A microscope was one of the most basic instruments for them. This is a
microscope from the 1930's.
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