Here are a few more shots of Bill Kanymir's rare 1889 German detective camera, the Simplex by Dr. R. Krugener of Frankfurt, Germany. Contact Bill via phsc@phsc if you have any questions about this example of the late 1800s german camera technology.

One of Bill's references on the Simplex was Eaton Lothrop's 'A Century of Cameras'. Shown below is the cover and a sample page (detailing the Simplex) from the original 1973 edition of this book. The original book covers some 130 landmark cameras from the International Museum of Photography at George Eastman House. While this edition is out of print, a revised and expanded edition covering 151 cameras is still available from various sites on the web including the publisher, Morgan & Morgan and Amazon etc.