MOS EE AA Ynyslas Meeting 2 Jan 1946, pg2
Research Building interior, Ynyslas
Research Building, Ynyslas
Range Finder near Moel Ynys
View from Range Finder near Moel Ynys
Rocket Test Track, Ynyslas
Pillbox, Ynyslas
Observation Post, Ynyslas
Observation Instrument Bases at Ynyslas