Get ready to elevate your nautical or spyglass collection with these antique brass monocular binoculars from Noble Metal Store. This vintage piece comes with a coated lens and a porro prism optical design, making it a perfect fit for opera glasses. Its mid-size and lightweight features make it easy to carry around, while the 25 mm objective lens diameter and 3x maximum magnification provide clear and precise vision. The brown-colored binoculars have a 4-inch length, a 0.5-inch height, and a 3-inch width, weighing only 250 gm. It comes with a leather case for safekeeping and is manufactured in India with a 1-month warranty. This binocular is perfect for anyone looking for a unique and rare piece to add to their collection.