2018-11-192018-11-19Unknownhttps://hdl.handle.net/2152.3/10761The front image of tailings from the ROFEI testing, date undetermined but circa 1950s. On the back side of the image is written: King 515, 13 June, DOT in Center, Firing 70 Ft ahead of target.Dr. William ThorntonROFEIresearchRadar Optic Firing Error IndicatorThornton Scorerpre-NASA