These antique Karl Schlesinger opera glasses from Austria are a rare find from the pre-1930 era. Crafted by the renowned maker, Karl Schlesinger, these theatre binoculars exude elegance and sophistication. The inclusion of a case adds to their charm, making them a perfect piece for collectors of vintage optics or those with a love for opera history. The intricate design and craftsmanship of these opera glasses make them a unique and special addition to any collection.