ICA Halloh 570, Camerapedia
Krügener: Trix Price Guide: estimate a camera value
Vintage and Collectible Cameras – Camera Trading Company
Six Vintage Cameras – Octopus Studio
Vintage Cameras - Camera Concepts & Telescope Solutions
35mm Viewfinder Camera Prototype, Vintage Cameras, Coeln Cameras – Vintage Cameras & Lenses
Antique Cameras & Projectors
ICA Halloh 570, Manufactured by Internationale Camera AG. (…
Cameras, Viewers & Accessories – Everything Old Antiques & Vintage