US Army communications and radio control center in 1940s

Wall board with grid layout with world sections and cities across the top and title above reading "Traffic Control Army Command and Administrative System," small discs cover some squares; officer walks up to board; takes disc off and puts one up; high-ranking officer, maybe a general, walks to board and points; first officer leaves and two more approach, maybe generals; they confer as WAC officer joins them; they all walk away / MS officers in front of board smiling, one points to square / same scene, he points again and they seem to confer, maybe for camera; they walk away including WAC officer / CU part of board listing European cities / CU part of board with US, African and Asian cities; pan board listing cities / communications room, sign at top reads "Radio Control," two officers at machine; another enters and they seem to confer; officer enters and unplugs cable and leaves / Note: exact year not known; documentation incomplete