The data inscribed on the side of the 8″ mirror: Cave Optical Co. M-783416 – F/6 – 48 5/16″ FL – Apr – 4 – 1978
When you want to see the stars, find someplace dark
The data inscribed on the side of the 8″ mirror: Cave Optical Co. M-783416 – F/6 – 48 5/16″ FL – Apr – 4 – 1978