Jun 16, 2010 The British Empire "All Up" Airmail Scheme 1937-1939 In 1937, Imperial Airways, launched its "All Up" Airmail Scheme which was designed to carry mail to destinations throughout the extensive British Empire. http://modern-british-history.suite101.com/article.cfm/the-british-empire-all-up-airmail-scheme-1937-1939 --- Harshawardhan_Bosham Nimkhedkar