This eBay listing offers a comprehensive guide to using lenses and prisms previously owned by the government. The instructions are provided in the form of a brochure, making it easy for both amateur and professional photographers to understand the workings of these essential tools.

You'll have the chance to learn about the best ways to use these lenses and prisms, with tips and tricks that will help you achieve the best possible results. This guide is perfect for anyone who wants to improve their photography skills, and it's an ideal resource for collectors of vintage camera equipment. Don't miss out on the chance to own this valuable piece of photographic history.