This black, tin Fitaksop 0 is also designed for miniature 30x70mm views. The design is the same as the NPG tin advertising viewers. Around 1920, NPG sold its stereoscopy assets — views and viewers — to Bing-Werke who continued producing the miniature folding stereoscope in all black.

Fitaskop 0 - Glossy Black (NPG Style)

The label inside the box top promises “magnificent, three-dimensional effect, just like with the large apparatuses.” It’s accompanied by 3 series of stereoviews of the Harz mountains, published by Carl Hildebrand.

Deluxe Fitaskop — Viewscope

The gold border, logo, and collapsible design of the super-glossy Viewscope stereo viewer are the same as Bing-Werke’s Fitaskop 1 viewer (not pictured); however, the Viewscope accommodates larger 45x107mm stereoviews. The Viewscope box has the same design as other Fitaskop boxes, except that the word “Viewscope” replaces the word “Fitaskop” and the “1c” is changed to “2c.” We aren’t sure what prompted the branding change to Viewscope.

There are so many collapsible black metal stereo viewers that look just like this, and they’re typically unmarked. However, a couple of things that seem to be common to the Fitaskop viewers are the beveled lens board and the smoothness of the metal. This one came in the original box with the Bing-Werke logo — that definitely made identification easier. This one also accepts 45x107mm stereoviews and came with a set of 10 Bing-Werke stereoviews of locations in Spain.