A Battery, 908th Field Artillery "Envelope"
This is an original WWII Army Cover dated May 31, 1945 and is franked, with booklet pane #C25a "Air Mail". The envelop was sent by Cpl. Walter A. Bernhardt to hsi wife Mss. Walter A. Bernhardt, 1100 First Ave., Hellertown, Pennsylvania. Nevertheless the envelope contains nothing.
The address the envelope was sent from was APO #83 which was somwhere in Germany on this date.
Find more info on Walter A. Bernhardt on the page "THE MEN OF THE 83rd"