Item showing how photographs are sent around the world via photo-telegraphy apparatus.
Various shots of demonstration of the apparatus used for wireless pictures - showing photograph on revolving drum. The man sends signals to tell the receiver the photo is coming. M/S as he adjust dials, etc. M/S wireless mast superimposed over sea, scene dissolves to drum revolving and picking up pictures. A man removes the photograph received by wireless from drum and looks at it.
Note: prototype of the fax machine?