[3038]  1931 New York airmail cover to Argentina.  $1.10 franking made up of 2 10-cent and 6 15-cent 4th bureau issues; it's a double rate cover.  Legal size with vertical fold; Hudson Term. Sta. handstamps with airmail repeater cancel on back from Argentina.  About 1/3 of left side of backflap gone.  The 55 cent airmail rate was in place from Jan. 1, 1930 through Nov. 30, 1937.  SOLD