Lestrade Simplex 3D Stereo Card Viewer

The Lestrade Simplex is a vintage 3D stereo card viewer, manufactured in France and believed to date from the 1950s or 1960s. The viewer was designed for viewing stereo cards, using its optical system to combine two separate images into a single three-dimensional view. This type of stereo viewer was a popular and affordable way of enjoying photographs and images with a spatial effect. With its French origin, vintage design, and simple optical construction, the Lestrade Simplex is an interesting item for collectors of historical photography, stereoscopy, and optical instruments.