Secret Fold-Up Cylinder Binoculars , 1880's 1890s
These secret binoculars folded up into a cylinder that might look like a coin holder or eyeglass case. They were called Optical Binoculars and made in France. The Binoculars measure approx. 4.5" x 1.3/8th inch diameter when closed. You can understand how popular they were since they were covert in nature until you had to use them. Really something and highly unique for it's time.

From The Ralph D. Thomas PI Vintage Collection
THOMAS INVESTIGATIE PUBLICATIONS, INC.
NATIONAL ASSOCIATION OF INVESTIGATIVE SPECIALISTS, INC.
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Email: RThomas007@aol.com

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