Leitz Binplastico 30x90 Observation Binocular

The Leitz Binplastico 30x90, produced in 1920s by Ernst Leitz Wetzlar, is an extremely rare and distinctive observation binocular. It features 30x magnification with 90mm objective lenses, providing a field of view of 26.2 meters at 1,000 meters. The binocular measures 77 cm in length, 21 cm in width, and weighs approximately 10 kg (excluding the base).

A notable feature is its swivelling eyepiece unit, which allows the interpupillary distance to extend up to 16 cm, enabling simultaneous use by two observers. The Binplastico's unique form and optical configuration required intricate prism arrangements, showcasing Leitz's innovative approach to optical engineering of the era. Due to its limited production, the Binplastico is considered a significant collector's item and a testament to early 20th-century optical design.

The offered example is in excellent condition and remains fully functional. It includes a coin-operated mechanism that allows viewers to use the binoculars for approximately one minute. The heavy metal base is engraved with the names of German cities and other attractions that could be viewed from the binocular's location. Additionally, the set includes a large wooden carrying crate, original tokens stamped with the Leitz logo, and keys for the clockwork mechanism.

Only a few of these rare binoculars are known to exist, with the offered example being the only one known in this particular configuration.