Up for auction is a remarkable Sperry Gyroscope Co. Type K-9 Sighting Head, measuring 8 x 10 x 8 inches. This iconic piece of World War II equipment played a crucial role in the U.S. Army Air Forces, specifically within gun turrets of heavy bombers like the B-17 Flying Fortress and B-29 Superfortress. While it shows signs of age and use, making it a fascinating historical artifact, the original manufacturer's plate adds authenticity and value for collectors. However, please note that its functionality remains untested, and it is sold as-is—ideal for display as a piece of aviation history. Don’t miss your chance to own this significant collectible!