Air Mail Plane Radiophone -- September 2, 2012

Air mail in the early 1920s was a dangerous business.  A radiophone would have allowed two-way communication between a pilot and ground stations.  This would have been a great boost to safety.  Here is an image from the June 1922 Radio Broadcast magazine showing an early experiment. 

We went to dinner at Westlake Joe's.  They were busy.