Farrand New York Super-Farron 0.87/76mm Ser.365

The Super-Farron lens is a commercially built, nine-element lens which was designed primarily for low-light-level oscilloscope recording, television camera recording, and similar applications. It was also used by the National Aeronautics and Space Administration (NASA) and was used in high-speed slitless spectrometers built for the spectral analysis of meteors. In fine condition with good optics, aperture is wide open and aperture ring does not move and is maybe fixed.