This vintage binocular from Zeika Opt Co. offers a powerful zoom range of 2 ½ to 8 times magnification with a 35mm objective lens. The model number is 31866 and it is in good working condition. It is perfect for bird watching, nature observation, or any outdoor activity. The binoculars have been well-maintained and come with a protective case for safe storage. With its high-quality optics, this binocular is sure to provide a clear and detailed view of your subject.