Blind Concentric Circles cancel 2 x 15c Statue of Liberty and 10c Monroe to long 3c U436e Registered envelope 

A 3c Prexy is un-tied and seems to have paid the Return Receipt fee.

purple double circle Manchester Center, VT registered backstamps of SEP 27 1939, Schenectady, NY SEP 28, 1938

light aging, roughly opened along top

Please see scans