This is a rare find for antique collectors and enthusiasts alike. These spectacles are made of high-quality steel and have spring wire arms for a secure and comfortable fit. The inspection magnifier is perfect for close work and is a great addition to any collection. The item was manufactured in the United Kingdom, adding to its value and uniqueness. This is a great opportunity to own a piece of optical history and scientific collectables. Don't miss out on this one-of-a-kind item!