Made by Kodak of Rochester, NY. The case is marked Return to Hawk-Eye dept. 160. We believe that this lens was going to be a replacement to the original Hawk-Eye lens that was just a single meniscus. This lens assembly is an air-spaced doublet that has a 30mm focal length. The front and rear lens clear diameter is 20mm. The housing for this lens assembly is made of aluminum. The front housing outside diameter is 33mm. Right behind the front lip is 3 threads for mounting purposes. The threaded area has a diameter of 28.5mm. The optics were pressed into the housing with glue to seal the press ring to the housing. Unused!