This Century Tele-Athenar lens is a great addition to your vintage movie and photography collection. Made in the United States, it has a maximum aperture of f/3 and is designed for the C Mount Bolex movie camera. The lens barrel is made of aluminum, making it durable and long-lasting. With its telephoto type and 9" 230mm F3.8 lens, this Century lens is perfect for capturing distant objects. It is a great find for collectors and enthusiasts of vintage lenses. Whether you're a fan of cinema or photography, this lens is a must-have.