Unsure of navigational purpose. Has many different lenses of glass that are all in great condition. It rotates along the measuring system on the sides. The only damage is that the top portion is not completely attached to the base. It appears it is missing a screw. Measures at 8 inches long. Unique and interesting piece!

Anson's Antiques is a family run, multigenerational store with 10+ years of experience. We source pieces from local Midwest auctions to your front door, shipping them within 3 business days of your order. All products are listed to the best of our knowledge and ability. We pride ourselves in fast, transparent, and friendly transactions. Returns are accepted within 30 days of your purchase. We love when folks contact us with any questions they may have and provide feedback of our services. Thank you for helping our small business of curated treasures!