Press Photo, Air Mailer Machine Introduced - 1939

Original real press photo, 7x9".  Press release on the reverse shows inventor Francis Roberts (rt.) and actress Louise Campbell introducing Roberts' machine which delivers a stamp, an envelope, stationery and an air mail map for the price of an airmail stamp alone.  The screen on the machine shows a motion picture of aviation news.  Release is dated 14 Sep 1939.  Very good, small corner crease.