This high level stereoscope was fabricated in metal and had a crackly black finish. It is worlds apart from the plastic visors shown above and is a precision instrument with the ability to focus. Radex fabricated slide sets covering various items listed in the catalog shown below, including stereo aerial photographs of cities taken by D.E. McGlone. These images were taken from such great heights as 3,500 feet using a stereoscopic interocular distance up to 250 feet and purporting to show a dramatic depth. Other topics included Aviation, Boats, geographic locations around the US, Industry and Nature Studies. The catalog gives the address as Radex Stereo Company 1328 West 6th Street, Los Angeles 14, California, USA.
