Virginia Tech, Extension Service2019-08-082019-08-081948-05-13http://hdl.handle.net/10919/92953Close-up of V-notch plate on W-II control section.positive, 4 x 5 in.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10WatershedWater RunoffSoil and Water ConservationAgricultural EngineeringProject 10 Image - VA Augusta County - 1948-05-13VA-R1-430PhotographBiological Systems Engineering, Virginia Tech