Philippines to U.S.: 1938 U.S. 1932 postal card UX15/S15 to Thomas A. Edison, Inc. - training inquiry

1932 Postal card UX15/S15 (pre-printed 2c green Rizal postmarked  MANILA, P.I. CDS JUN 12 1938, addressed to:

Department of Educational Research, Thomas A. Edison, Inc., West Orange, New Jersey, U.S.A.  Clear  Edison Corp “RECEIVED JUL 19 1938 / INTERNATIONAL DIVISION” handstamp in magenta.

Message datelined:
“75th Ordnance Co., Phil. Ordnance Dept., Manila, P.I., June 15, 1938”, written by Pvt. Vernon Beyer, requesting information regarding Edison training programs for the Edihone -   The Ediphone was a revolutionary dictation machine marketed by Thomas A. Edison, Inc., in the early 20th century (introduced around 1912-1916) for business, office, and legal use. It allowed users to record voice onto replaceable wax cylinders through a speaking tube, which a secretary would later transcribe, reducing the need for live stenographers.

Very interesting piece.