Night operation on may 17, 1943 at the dam art drawingNight operation on May 17, 1943 at the dam art drawing
The internals of the system unit in the dark rangeThe internals of the system unit in the dark range
Night operation on may 17, 1943 at the dam art drawingNight operation on May 17, 1943 at the dam art drawing
The internals of the system unit in the dark rangeThe internals of the system unit in the dark range