Malaysia Stamp & Philately Reference Guide
  Portrait of Queen Elizabeth II with Information on Reverse

1.

Official Registered Envelope


+ Issue Date     : 1951
+ Classification : Envelope Registered Official
+ Shape          : Rectangular
Portrait of King George VI 20¢ Registered Envelope blocked out with a square box and 17 parallel vertical lines.
ORE1
Size H2
ORE2
Size K