Dear all,
could you please let me know whether there is any unit designation system (digitdigit-letter) of Piper Cub L-4s in U.S. Army made available? I am particularly interested in a ship coded "21-A" belonging probably to 90th or 2nd U.S. Infantry Division in May 1945. A picture of it can be seen at
http://hloubkari.cz/forum/index.php?topic=685.0
Thank you. Regards, Filip Vojtasek